diff --git a/src/Endpoints/EmailEndpoint.php b/src/Endpoints/EmailEndpoint.php
index e6058a0..5137e7b 100644
--- a/src/Endpoints/EmailEndpoint.php
+++ b/src/Endpoints/EmailEndpoint.php
@@ -10,6 +10,7 @@
 /**
  * @phpstan-import-type SendMailRequest from \Lettermint\Types\ApiTypes
  * @phpstan-import-type SendBatchMailRequest from \Lettermint\Types\ApiTypes
+ * @phpstan-import-type SandboxResult from \Lettermint\Types\ApiTypes
  *
  * @phpstan-type AttachmentPayload array{
  *     filename: string,
@@ -37,7 +38,8 @@
  *     tag?: string|null,
  *     tags?: list<array{name: string, value: string}>,
  *     settings?: EmailSettings|null,
- *     headers?: array<string, string>
+ *     headers?: array<string, string>,
+ *     sandbox_result?: SandboxResult
  * }
  */
 class EmailEndpoint extends Endpoint
@@ -291,6 +293,18 @@ public function tags(array $tags): self
         return $this;
     }
 
+    /**
+     * Select the simulated result for a Sandbox project.
+     *
+     * @phpstan-param SandboxResult $result
+     */
+    public function sandboxResult(string $result): self
+    {
+        $this->payload['sandbox_result'] = $result;
+
+        return $this;
+    }
+
     /**
      * Set per-email settings.
      *
diff --git a/src/Objects/DomainData.php b/src/Objects/DomainData.php
index 288e687..a9f1eba 100644
--- a/src/Objects/DomainData.php
+++ b/src/Objects/DomainData.php
@@ -10,13 +10,13 @@
  * @property 'legacy_txt'|'managed_cname' $dkim_mode
  * @property bool $rotation_ready
  * @property string|null $status_changed_at
- * @property list<DomainDnsRecordData> $dns_records
+ * @property list<\Lettermint\Objects\DomainDnsRecordData> $dns_records
  * @property list<array<string, mixed>> $projects
  * @property string $created_at
  */
 final class DomainData extends Resource
 {
     protected static array $casts = [
-        'dns_records' => [DomainDnsRecordData::class],
+        'dns_records' => [\Lettermint\Objects\DomainDnsRecordData::class],
     ];
 }
diff --git a/src/Objects/MessageData.php b/src/Objects/MessageData.php
index b1fc4fc..422acaf 100644
--- a/src/Objects/MessageData.php
+++ b/src/Objects/MessageData.php
@@ -7,27 +7,30 @@
 /**
  * @property string $id
  * @property 'inbound'|'outbound' $type
- * @property 'scheduled'|'pending'|'queued'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
+ * @property 'scheduled'|'pending'|'queued'|'quarantined'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
  * @property string|null $status_changed_at
  * @property string|null $scheduled_at
  * @property string|null $tag
+ * @property list<array<string, mixed>> $tags
  * @property string $from_email
  * @property string|null $from_name
  * @property list<string>|null $reply_to
  * @property string|null $subject
- * @property list<MessageRecipientData>|null $to
- * @property list<MessageRecipientData>|null $cc
- * @property list<MessageRecipientData>|null $bcc
- * @property list<MessageAttachmentData>|null $attachments
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $to
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $cc
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $bcc
+ * @property list<\Lettermint\Objects\MessageAttachmentData>|null $attachments
  * @property array<string, string>|null $metadata
  * @property float|int|null $spam_score
- * @property list<SpamSymbol> $spam_symbols
+ * @property list<\Lettermint\Objects\SpamSymbol> $spam_symbols
  * @property string $route_id
  * @property string $created_at
+ * @property 'live'|'sandbox' $delivery_mode
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed'|null $sandbox_result
  */
 final class MessageData extends Resource
 {
     protected static array $casts = [
-        'spam_symbols' => [SpamSymbol::class],
+        'spam_symbols' => [\Lettermint\Objects\SpamSymbol::class],
     ];
 }
diff --git a/src/Objects/MessageEventData.php b/src/Objects/MessageEventData.php
index 2410b57..1e7972f 100644
--- a/src/Objects/MessageEventData.php
+++ b/src/Objects/MessageEventData.php
@@ -6,7 +6,9 @@
 
 /**
  * @property string $message_id
- * @property 'scheduled'|'rescheduled'|'canceled'|'released'|'queued'|'processed'|'suppressed'|'delivered'|'auto_replied'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'opened'|'clicked'|'inbound_received'|'inbound_queued'|'inbound_spam_blocked'|'inbound_processed'|'inbound_retry' $event
+ * @property 'scheduled'|'rescheduled'|'canceled'|'released'|'queued'|'processed'|'suppressed'|'delivered'|'auto_replied'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'opened'|'clicked'|'inbound_received'|'inbound_queued'|'inbound_spam_blocked'|'inbound_released'|'inbound_processed'|'inbound_retry' $event
+ * @property string|null $tag
+ * @property list<array<string, mixed>> $tags
  * @property array<string, mixed>|null $metadata
  * @property string $timestamp
  */
diff --git a/src/Objects/MessageListData.php b/src/Objects/MessageListData.php
index b23959f..8fe61e0 100644
--- a/src/Objects/MessageListData.php
+++ b/src/Objects/MessageListData.php
@@ -7,19 +7,22 @@
 /**
  * @property string $id
  * @property 'inbound'|'outbound' $type
- * @property 'scheduled'|'pending'|'queued'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
+ * @property 'scheduled'|'pending'|'queued'|'quarantined'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
  * @property string|null $scheduled_at
  * @property float|int|null $spam_score
  * @property string $from_email
  * @property string|null $from_name
  * @property string|null $subject
- * @property list<MessageRecipientData>|null $to
- * @property list<MessageRecipientData>|null $cc
- * @property list<MessageRecipientData>|null $bcc
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $to
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $cc
+ * @property list<\Lettermint\Objects\MessageRecipientData>|null $bcc
  * @property list<string>|null $reply_to
  * @property string|null $tag
+ * @property list<array<string, mixed>> $tags
  * @property string|null $status_changed_at
  * @property string $created_at
+ * @property 'live'|'sandbox' $delivery_mode
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed'|null $sandbox_result
  */
 final class MessageListData extends Resource
 {
diff --git a/src/Objects/MessageRecipientData.php b/src/Objects/MessageRecipientData.php
index a9d88e3..56d102e 100644
--- a/src/Objects/MessageRecipientData.php
+++ b/src/Objects/MessageRecipientData.php
@@ -7,6 +7,7 @@
 /**
  * @property string $email
  * @property string|null $name
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed'|null $sandbox_result
  */
 final class MessageRecipientData extends Resource
 {
diff --git a/src/Objects/ProjectData.php b/src/Objects/ProjectData.php
index d7bec33..d102452 100644
--- a/src/Objects/ProjectData.php
+++ b/src/Objects/ProjectData.php
@@ -13,18 +13,19 @@
  * @property string|null $token_generated_at
  * @property string|null $token_last_used_at
  * @property string|null $token_last_used_ip
- * @property list<RouteListData> $routes
+ * @property list<\Lettermint\Objects\RouteListData> $routes
  * @property int $routes_count
- * @property list<DomainData> $domains
+ * @property list<\Lettermint\Objects\DomainData> $domains
  * @property int $domains_count
- * @property MessageStatsData|mixed $last_28_days
+ * @property \Lettermint\Objects\MessageStatsData|null $last_28_days
  * @property string $created_at
  * @property string $updated_at
+ * @property 'live'|'sandbox' $delivery_mode
  */
 final class ProjectData extends Resource
 {
     protected static array $casts = [
-        'routes' => [RouteData::class],
-        'domains' => [DomainData::class],
+        'routes' => [\Lettermint\Objects\RouteData::class],
+        'domains' => [\Lettermint\Objects\DomainData::class],
     ];
 }
diff --git a/src/Objects/ProjectListData.php b/src/Objects/ProjectListData.php
index 4ed7af1..350409c 100644
--- a/src/Objects/ProjectListData.php
+++ b/src/Objects/ProjectListData.php
@@ -10,13 +10,13 @@
  * @property bool $smtp_enabled
  * @property int $routes_count
  * @property int $domains_count
- * @property MessageStatsData $last_28_days
+ * @property \Lettermint\Objects\MessageStatsData $last_28_days
  * @property string $created_at
  * @property string $updated_at
  */
 final class ProjectListData extends Resource
 {
     protected static array $casts = [
-        'last_28_days' => MessageStatsData::class,
+        'last_28_days' => \Lettermint\Objects\MessageStatsData::class,
     ];
 }
diff --git a/src/Objects/RescheduleMessageRequest.php b/src/Objects/RescheduleMessageRequest.php
new file mode 100644
index 0000000..eeac35f
--- /dev/null
+++ b/src/Objects/RescheduleMessageRequest.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Lettermint\Objects;
+
+use Lettermint\Resource;
+
+/**
+ * @property string $scheduled_at
+ */
+final class RescheduleMessageRequest extends Resource
+{
+    //
+}
diff --git a/src/Objects/RouteData.php b/src/Objects/RouteData.php
index 0280455..7473b1f 100644
--- a/src/Objects/RouteData.php
+++ b/src/Objects/RouteData.php
@@ -12,21 +12,23 @@
  * @property 'transactional'|'broadcast'|'inbound' $route_type
  * @property bool $is_default
  * @property string|null $inbound_address
+ * @property string $inbound_mx_hostname
  * @property string|null $inbound_domain
  * @property string|null $inbound_domain_verified_at
  * @property float|int|null $inbound_spam_threshold
  * @property 'inline'|'url' $attachment_delivery
- * @property array<string, mixed>|mixed $settings
- * @property ProjectListData $project
+ * @property array<string, mixed>|null $settings
+ * @property \Lettermint\Objects\ProjectListData $project
  * @property int $webhooks_count
  * @property int $suppressed_recipients_count
- * @property array<string, mixed>|list<RouteStatisticData> $statistics
+ * @property list<\Lettermint\Objects\RouteStatisticData> $statistics
  * @property string $created_at
  * @property string $updated_at
  */
 final class RouteData extends Resource
 {
     protected static array $casts = [
-        'project' => ProjectData::class,
+        'project' => \Lettermint\Objects\ProjectData::class,
+        'statistics' => [\Lettermint\Objects\RouteStatisticData::class],
     ];
 }
diff --git a/src/Objects/SendMailRequest.php b/src/Objects/SendMailRequest.php
index 4efc4d4..4fc8d9c 100644
--- a/src/Objects/SendMailRequest.php
+++ b/src/Objects/SendMailRequest.php
@@ -7,19 +7,21 @@
 /**
  * @property string $route
  * @property string $from
- * @property string $subject
- * @property string $scheduled_at
- * @property string|null $tag
- * @property string|null $html
- * @property string|null $text
  * @property list<string> $to
  * @property list<string> $cc
  * @property list<string> $bcc
  * @property list<string> $reply_to
+ * @property string $subject
+ * @property string $scheduled_at
  * @property array<string, string> $headers
  * @property array<string, string> $metadata
+ * @property string|null $tag
+ * @property list<array<string, mixed>> $tags
  * @property array<string, mixed>|null $settings
+ * @property string|null $html
+ * @property string|null $text
  * @property list<array<string, mixed>> $attachments
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed' $sandbox_result
  */
 final class SendMailRequest extends Resource
 {
diff --git a/src/Objects/StatsDailyData.php b/src/Objects/StatsDailyData.php
index f44765e..e23b310 100644
--- a/src/Objects/StatsDailyData.php
+++ b/src/Objects/StatsDailyData.php
@@ -12,9 +12,9 @@
  * @property int $spam_complaints
  * @property int|null $opened
  * @property int|null $clicked
- * @property StatsInboundData $inbound
- * @property StatsTypeData|mixed $transactional
- * @property StatsTypeData|mixed $broadcast
+ * @property \Lettermint\Objects\StatsInboundData $inbound
+ * @property \Lettermint\Objects\StatsTypeData|null $transactional
+ * @property \Lettermint\Objects\StatsTypeData|null $broadcast
  * @property int|null $observed_opened
  * @property int|null $human_opened
  * @property int|null $privacy_opened
@@ -25,6 +25,6 @@
 final class StatsDailyData extends Resource
 {
     protected static array $casts = [
-        'inbound' => StatsInboundData::class,
+        'inbound' => \Lettermint\Objects\StatsInboundData::class,
     ];
 }
diff --git a/src/Objects/StatsTotalsData.php b/src/Objects/StatsTotalsData.php
index de85481..5b45802 100644
--- a/src/Objects/StatsTotalsData.php
+++ b/src/Objects/StatsTotalsData.php
@@ -11,9 +11,9 @@
  * @property int $spam_complaints
  * @property int|null $opened
  * @property int|null $clicked
- * @property StatsInboundData $inbound
- * @property StatsTypeData|mixed $transactional
- * @property StatsTypeData|mixed $broadcast
+ * @property \Lettermint\Objects\StatsInboundData $inbound
+ * @property \Lettermint\Objects\StatsTypeData|null $transactional
+ * @property \Lettermint\Objects\StatsTypeData|null $broadcast
  * @property int|null $observed_opened
  * @property int|null $human_opened
  * @property int|null $privacy_opened
@@ -24,6 +24,6 @@
 final class StatsTotalsData extends Resource
 {
     protected static array $casts = [
-        'inbound' => StatsInboundData::class,
+        'inbound' => \Lettermint\Objects\StatsInboundData::class,
     ];
 }
diff --git a/src/Objects/StoreProjectData.php b/src/Objects/StoreProjectData.php
index 92f1378..2fcc9c6 100644
--- a/src/Objects/StoreProjectData.php
+++ b/src/Objects/StoreProjectData.php
@@ -9,6 +9,7 @@
  * @property bool $smtp_enabled
  * @property 'both'|'transactional'|'broadcast' $initial_routes
  * @property bool $short_token
+ * @property 'live'|'sandbox' $delivery_mode
  */
 final class StoreProjectData extends Resource
 {
diff --git a/src/Objects/StoreSuppressionData.php b/src/Objects/StoreSuppressionData.php
index a67d6d7..4fffc1f 100644
--- a/src/Objects/StoreSuppressionData.php
+++ b/src/Objects/StoreSuppressionData.php
@@ -6,11 +6,12 @@
 
 /**
  * @property string|null $email
+ * @property list<string>|null $emails
  * @property 'spam_complaint'|'hard_bounce'|'unsubscribe'|'manual' $reason
- * @property 'global'|'team'|'project'|'route' $scope
+ * @property 'team'|'project'|'route' $scope
  * @property string|null $route_id
  * @property string|null $project_id
- * @property list<string>|null $emails
+ * @property 'all'|'broadcast'|null $applies_to
  */
 final class StoreSuppressionData extends Resource
 {
diff --git a/src/Objects/StoreWebhookData.php b/src/Objects/StoreWebhookData.php
index b0eed6a..e74896b 100644
--- a/src/Objects/StoreWebhookData.php
+++ b/src/Objects/StoreWebhookData.php
@@ -5,12 +5,16 @@
 use Lettermint\Resource;
 
 /**
- * @property string $route_id
  * @property string $name
  * @property string $url
+ * @property list<'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test'> $events
  * @property bool|null $enabled
  * @property bool|null $include_machine_events
- * @property list<'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test'> $events
+ * @property 'team'|'project'|'route'|null $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
+ * @property 'live'|'sandbox'|'both'|null $delivery_mode_filter
  */
 final class StoreWebhookData extends Resource
 {
diff --git a/src/Objects/SuppressedRecipientData.php b/src/Objects/SuppressedRecipientData.php
index 40f0949..7c27104 100644
--- a/src/Objects/SuppressedRecipientData.php
+++ b/src/Objects/SuppressedRecipientData.php
@@ -9,16 +9,14 @@
  * @property 'email'|'domain'|'extension' $type
  * @property string $value
  * @property 'spam_complaint'|'hard_bounce'|'unsubscribe'|'manual' $reason
- * @property 'global'|'team'|'project'|'route' $scope
+ * @property 'team'|'project'|'route' $scope
+ * @property 'all'|'broadcast' $applies_to
  * @property string|null $project_id
  * @property string|null $route_id
- * @property SuppressionSourceMessageData|null $source_message
+ * @property \Lettermint\Objects\SuppressionSourceMessageData|null $source_message
  * @property string $created_at
- * @property string $updated_at
  */
 final class SuppressedRecipientData extends Resource
 {
-    protected static array $casts = [
-        'source_message' => SuppressionSourceMessageData::class,
-    ];
+    //
 }
diff --git a/src/Objects/TeamData.php b/src/Objects/TeamData.php
index ca1d1cd..057ca14 100644
--- a/src/Objects/TeamData.php
+++ b/src/Objects/TeamData.php
@@ -13,7 +13,7 @@
  * @property int $tier
  * @property string|null $verified_at
  * @property list<string> $features
- * @property list<TeamAddonData> $addons
+ * @property list<\Lettermint\Objects\TeamAddonData> $addons
  * @property string $created_at
  * @property int $domains_count
  * @property int $projects_count
@@ -22,6 +22,6 @@
 final class TeamData extends Resource
 {
     protected static array $casts = [
-        'addons' => [TeamAddonData::class],
+        'addons' => [\Lettermint\Objects\TeamAddonData::class],
     ];
 }
diff --git a/src/Objects/TeamMemberData.php b/src/Objects/TeamMemberData.php
index 640f0b4..d88c314 100644
--- a/src/Objects/TeamMemberData.php
+++ b/src/Objects/TeamMemberData.php
@@ -9,12 +9,12 @@
  * @property string $name
  * @property string $email
  * @property array<string, mixed> $role
- * @property TeamMemberProjectAccessData $project_access
+ * @property \Lettermint\Objects\TeamMemberProjectAccessData $project_access
  * @property string|null $joined_at
  */
 final class TeamMemberData extends Resource
 {
     protected static array $casts = [
-        'project_access' => TeamMemberProjectAccessData::class,
+        'project_access' => \Lettermint\Objects\TeamMemberProjectAccessData::class,
     ];
 }
diff --git a/src/Objects/TeamRoleData.php b/src/Objects/TeamRoleData.php
index 7eecb14..d4924d1 100644
--- a/src/Objects/TeamRoleData.php
+++ b/src/Objects/TeamRoleData.php
@@ -8,7 +8,7 @@
  * @property string $id
  * @property string $name
  * @property 'owner'|'admin'|'member'|null $system_key
- * @property list<string> $permissions
+ * @property list<'team:manage'|'billing:manage'|'security:manage'|'audit:read'|'support:manage'|'members:read'|'members:manage'|'roles:manage'|'team_tokens:read'|'team_tokens:manage'|'team_tokens:rotate'|'team_tokens:revoke'|'projects:create'|'team_suppressions:read'|'team_suppressions:add'|'team_suppressions:remove'|'projects:read'|'projects:manage'|'projects:delete'|'routes:read'|'routes:manage'|'routes:delete'|'domains:read'|'domains:manage'|'domains:delete'|'project_tokens:read'|'project_tokens:manage'|'project_tokens:rotate'|'project_tokens:revoke'|'webhooks:read'|'webhooks:manage'|'webhooks:delete'|'webhooks:rotate_secret'|'stats:read'|'messages:read'|'messages:read_content'|'messages:send'|'suppressions:read'|'suppressions:add'|'suppressions:remove'> $permissions
  * @property bool $assignable
  */
 final class TeamRoleData extends Resource
diff --git a/src/Objects/UpdateProjectData.php b/src/Objects/UpdateProjectData.php
index 9126d5a..92cfd21 100644
--- a/src/Objects/UpdateProjectData.php
+++ b/src/Objects/UpdateProjectData.php
@@ -9,6 +9,7 @@
  * @property bool|null $smtp_enabled
  * @property bool|null $redact_email_content
  * @property string|null $default_route_id
+ * @property 'live'|'sandbox'|null $delivery_mode
  */
 final class UpdateProjectData extends Resource
 {
diff --git a/src/Objects/UpdateRouteData.php b/src/Objects/UpdateRouteData.php
index 08b5799..ec0435a 100644
--- a/src/Objects/UpdateRouteData.php
+++ b/src/Objects/UpdateRouteData.php
@@ -6,8 +6,8 @@
 
 /**
  * @property string|null $name
- * @property \Lettermint\Objects\UpdateRouteSettingsData|mixed $settings
- * @property \Lettermint\Objects\UpdateRouteInboundSettingsData|mixed $inbound_settings
+ * @property \Lettermint\Objects\UpdateRouteSettingsData|null $settings
+ * @property \Lettermint\Objects\UpdateRouteInboundSettingsData|null $inbound_settings
  */
 final class UpdateRouteData extends Resource
 {
diff --git a/src/Objects/UpdateRouteInboundSettingsData.php b/src/Objects/UpdateRouteInboundSettingsData.php
index 00930b7..2d1a213 100644
--- a/src/Objects/UpdateRouteInboundSettingsData.php
+++ b/src/Objects/UpdateRouteInboundSettingsData.php
@@ -7,7 +7,7 @@
 /**
  * @property string|null $inbound_domain
  * @property float|int|null $inbound_spam_threshold
- * @property 'inline'|'url'|mixed $attachment_delivery
+ * @property 'inline'|'url'|null $attachment_delivery
  */
 final class UpdateRouteInboundSettingsData extends Resource
 {
diff --git a/src/Objects/UpdateRouteSettingsData.php b/src/Objects/UpdateRouteSettingsData.php
index 30b2c07..c299e65 100644
--- a/src/Objects/UpdateRouteSettingsData.php
+++ b/src/Objects/UpdateRouteSettingsData.php
@@ -9,6 +9,7 @@
  * @property bool|null $track_clicks
  * @property bool|null $generate_plaintext_fallback
  * @property bool|null $suppress_auto_responders
+ * @property bool|null $suppress_disposable_recipients
  * @property 'opportunistic'|'enforced'|null $tls
  * @property bool|null $disable_hosted_unsubscribe
  * @property bool|null $redact_email_content
diff --git a/src/Objects/UpdateWebhookData.php b/src/Objects/UpdateWebhookData.php
index 2fb1a7f..2665c46 100644
--- a/src/Objects/UpdateWebhookData.php
+++ b/src/Objects/UpdateWebhookData.php
@@ -7,9 +7,14 @@
 /**
  * @property string $name
  * @property string $url
+ * @property list<'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test'> $events
  * @property bool $enabled
  * @property bool $include_machine_events
- * @property list<'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test'> $events
+ * @property 'team'|'project'|'route' $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
+ * @property 'live'|'sandbox'|'both' $delivery_mode_filter
  */
 final class UpdateWebhookData extends Resource
 {
diff --git a/src/Objects/WebhookData.php b/src/Objects/WebhookData.php
index 26f8b50..65851ae 100644
--- a/src/Objects/WebhookData.php
+++ b/src/Objects/WebhookData.php
@@ -6,16 +6,19 @@
 
 /**
  * @property string $id
- * @property string $route_id
+ * @property 'team'|'project'|'route' $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
  * @property string $name
  * @property string $url
  * @property list<string> $events
  * @property bool $enabled
  * @property bool $include_machine_events
- * @property string $secret
  * @property string|null $last_called_at
  * @property string $created_at
  * @property string $updated_at
+ * @property 'live'|'sandbox'|'both' $delivery_mode_filter
  */
 final class WebhookData extends Resource
 {
diff --git a/src/Objects/WebhookDeliveryData.php b/src/Objects/WebhookDeliveryData.php
index c42ff11..cf5013b 100644
--- a/src/Objects/WebhookDeliveryData.php
+++ b/src/Objects/WebhookDeliveryData.php
@@ -7,7 +7,10 @@
 /**
  * @property string $id
  * @property string $webhook_id
- * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property string|null $source_scope
+ * @property string|null $source_project_id
+ * @property string|null $source_route_id
  * @property 'pending'|'success'|'failed'|'client_error'|'server_error'|'timeout' $status
  * @property int $attempt_number
  * @property int|null $http_status_code
@@ -18,6 +21,7 @@
  * @property string|null $error_message
  * @property string|null $delivered_at
  * @property string $timestamp
+ * @property bool $sandbox
  */
 final class WebhookDeliveryData extends Resource
 {
diff --git a/src/Objects/WebhookDeliveryListData.php b/src/Objects/WebhookDeliveryListData.php
index 0cd577c..571dabf 100644
--- a/src/Objects/WebhookDeliveryListData.php
+++ b/src/Objects/WebhookDeliveryListData.php
@@ -7,7 +7,10 @@
 /**
  * @property string $id
  * @property string $webhook_id
- * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property string|null $source_scope
+ * @property string|null $source_project_id
+ * @property string|null $source_route_id
  * @property 'pending'|'success'|'failed'|'client_error'|'server_error'|'timeout' $status
  * @property int $attempt_number
  * @property int|null $http_status_code
diff --git a/src/Objects/WebhookListData.php b/src/Objects/WebhookListData.php
index f798f6c..aaac202 100644
--- a/src/Objects/WebhookListData.php
+++ b/src/Objects/WebhookListData.php
@@ -6,10 +6,13 @@
 
 /**
  * @property string $id
- * @property string $route_id
+ * @property 'team'|'project'|'route' $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
  * @property string $name
  * @property string $url
- * @property list<'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test'> $events
+ * @property list<string> $events
  * @property bool $enabled
  * @property string|null $last_called_at
  * @property string $created_at
diff --git a/src/Objects/WebhookSecretData.php b/src/Objects/WebhookSecretData.php
new file mode 100644
index 0000000..8737b75
--- /dev/null
+++ b/src/Objects/WebhookSecretData.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Lettermint\Objects;
+
+use Lettermint\Resource;
+
+/**
+ * @property string $id
+ * @property 'team'|'project'|'route' $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
+ * @property string $name
+ * @property string $url
+ * @property list<string> $events
+ * @property bool $enabled
+ * @property bool $include_machine_events
+ * @property string $secret
+ * @property string|null $last_called_at
+ * @property string $created_at
+ * @property string $updated_at
+ * @property 'live'|'sandbox'|'both' $delivery_mode_filter
+ */
+final class WebhookSecretData extends Resource
+{
+    //
+}
diff --git a/src/Responses/CreateWebhookResponse.php b/src/Responses/CreateWebhookResponse.php
index d16a058..8ab24ed 100644
--- a/src/Responses/CreateWebhookResponse.php
+++ b/src/Responses/CreateWebhookResponse.php
@@ -5,12 +5,12 @@
 use Lettermint\Resource;
 
 /**
- * @property \Lettermint\Objects\WebhookData $data
+ * @property \Lettermint\Objects\WebhookSecretData $data
  * @property string $message
  */
 final class CreateWebhookResponse extends Resource
 {
     protected static array $casts = [
-        'data' => \Lettermint\Objects\WebhookData::class,
+        'data' => \Lettermint\Objects\WebhookSecretData::class,
     ];
 }
diff --git a/src/Responses/DomainResponse.php b/src/Responses/DomainResponse.php
index f01a742..c585564 100644
--- a/src/Responses/DomainResponse.php
+++ b/src/Responses/DomainResponse.php
@@ -2,7 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\DomainDnsRecordData;
 use Lettermint\Resource;
 
 /**
@@ -11,7 +10,7 @@
  * @property 'legacy_txt'|'managed_cname' $dkim_mode
  * @property bool $rotation_ready
  * @property string|null $status_changed_at
- * @property list<DomainDnsRecordData> $dns_records
+ * @property list<\Lettermint\Objects\DomainDnsRecordData> $dns_records
  * @property list<array<string, mixed>> $projects
  * @property string $created_at
  */
diff --git a/src/Responses/MessageEventsResponse.php b/src/Responses/MessageEventsResponse.php
index 3421fc6..2d3e61e 100644
--- a/src/Responses/MessageEventsResponse.php
+++ b/src/Responses/MessageEventsResponse.php
@@ -6,12 +6,8 @@
 
 /**
  * @property list<\Lettermint\Objects\MessageEventData> $data
- * @property string|null $path
- * @property int $per_page
- * @property string|null $next_cursor
- * @property string|null $next_page_url
- * @property string|null $prev_cursor
- * @property string|null $prev_page_url
+ * @property list<string> $links
+ * @property array<string, mixed> $meta
  */
 final class MessageEventsResponse extends Resource
 {
diff --git a/src/Responses/MessageListResponse.php b/src/Responses/MessageListResponse.php
index cf58085..68f6b9c 100644
--- a/src/Responses/MessageListResponse.php
+++ b/src/Responses/MessageListResponse.php
@@ -6,12 +6,8 @@
 
 /**
  * @property list<\Lettermint\Objects\MessageListData> $data
- * @property string|null $path
- * @property int $per_page
- * @property string|null $next_cursor
- * @property string|null $next_page_url
- * @property string|null $prev_cursor
- * @property string|null $prev_page_url
+ * @property list<string> $links
+ * @property array<string, mixed> $meta
  */
 final class MessageListResponse extends Resource
 {
diff --git a/src/Responses/MessageResponse.php b/src/Responses/MessageResponse.php
index c0b8b63..86cdb37 100644
--- a/src/Responses/MessageResponse.php
+++ b/src/Responses/MessageResponse.php
@@ -7,9 +7,11 @@
 /**
  * @property string $id
  * @property 'inbound'|'outbound' $type
- * @property 'pending'|'queued'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed' $status
+ * @property 'scheduled'|'pending'|'queued'|'quarantined'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
  * @property string|null $status_changed_at
+ * @property string|null $scheduled_at
  * @property string|null $tag
+ * @property list<array<string, mixed>> $tags
  * @property string $from_email
  * @property string|null $from_name
  * @property list<string>|null $reply_to
@@ -23,6 +25,8 @@
  * @property list<\Lettermint\Objects\SpamSymbol> $spam_symbols
  * @property string $route_id
  * @property string $created_at
+ * @property 'live'|'sandbox' $delivery_mode
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed'|null $sandbox_result
  */
 final class MessageResponse extends Resource
 {
diff --git a/src/Responses/ProjectResponse.php b/src/Responses/ProjectResponse.php
index f43bdb6..f0eb8fc 100644
--- a/src/Responses/ProjectResponse.php
+++ b/src/Responses/ProjectResponse.php
@@ -2,9 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\DomainData;
-use Lettermint\Objects\MessageStatsData;
-use Lettermint\Objects\RouteData;
 use Lettermint\Resource;
 
 /**
@@ -16,13 +13,14 @@
  * @property string|null $token_generated_at
  * @property string|null $token_last_used_at
  * @property string|null $token_last_used_ip
- * @property list<RouteData> $routes
+ * @property list<\Lettermint\Objects\RouteData> $routes
  * @property int $routes_count
- * @property list<DomainData> $domains
+ * @property list<\Lettermint\Objects\DomainData> $domains
  * @property int $domains_count
- * @property MessageStatsData|mixed $last_28_days
+ * @property \Lettermint\Objects\MessageStatsData|null $last_28_days
  * @property string $created_at
  * @property string $updated_at
+ * @property 'live'|'sandbox' $delivery_mode
  */
 final class ProjectResponse extends Resource
 {
diff --git a/src/Responses/RegenerateWebhookSecretResponse.php b/src/Responses/RegenerateWebhookSecretResponse.php
index 2272d23..734cdc3 100644
--- a/src/Responses/RegenerateWebhookSecretResponse.php
+++ b/src/Responses/RegenerateWebhookSecretResponse.php
@@ -5,12 +5,12 @@
 use Lettermint\Resource;
 
 /**
- * @property \Lettermint\Objects\WebhookData $data
+ * @property \Lettermint\Objects\WebhookSecretData $data
  * @property string $message
  */
 final class RegenerateWebhookSecretResponse extends Resource
 {
     protected static array $casts = [
-        'data' => \Lettermint\Objects\WebhookData::class,
+        'data' => \Lettermint\Objects\WebhookSecretData::class,
     ];
 }
diff --git a/src/Responses/RouteResponse.php b/src/Responses/RouteResponse.php
index fef6dc8..a241a8f 100644
--- a/src/Responses/RouteResponse.php
+++ b/src/Responses/RouteResponse.php
@@ -2,8 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\ProjectData;
-use Lettermint\Objects\RouteStatisticData;
 use Lettermint\Resource;
 
 /**
@@ -14,15 +12,16 @@
  * @property 'transactional'|'broadcast'|'inbound' $route_type
  * @property bool $is_default
  * @property string|null $inbound_address
+ * @property string $inbound_mx_hostname
  * @property string|null $inbound_domain
  * @property string|null $inbound_domain_verified_at
  * @property float|int|null $inbound_spam_threshold
  * @property 'inline'|'url' $attachment_delivery
- * @property array<string, mixed>|mixed $settings
- * @property ProjectData $project
+ * @property array<string, mixed>|null $settings
+ * @property \Lettermint\Objects\ProjectData $project
  * @property int $webhooks_count
  * @property int $suppressed_recipients_count
- * @property array<string, mixed>|list<RouteStatisticData> $statistics
+ * @property list<\Lettermint\Objects\RouteStatisticData> $statistics
  * @property string $created_at
  * @property string $updated_at
  */
diff --git a/src/Responses/SendMailResponse.php b/src/Responses/SendMailResponse.php
index 3e2feae..fbaa4aa 100644
--- a/src/Responses/SendMailResponse.php
+++ b/src/Responses/SendMailResponse.php
@@ -5,9 +5,11 @@
 use Lettermint\Resource;
 
 /**
- * @property string $message_id
- * @property 'scheduled'|'pending'|'queued'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
+ * @property string|null $message_id
+ * @property 'scheduled'|'pending'|'queued'|'quarantined'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled' $status
  * @property string $scheduled_at
+ * @property bool $sandbox
+ * @property 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed' $sandbox_result
  */
 final class SendMailResponse extends Resource
 {
diff --git a/src/Responses/TeamMembersAssignmentUpdateResponse.php b/src/Responses/TeamMembersAssignmentUpdateResponse.php
index 30fd634..80c3b98 100644
--- a/src/Responses/TeamMembersAssignmentUpdateResponse.php
+++ b/src/Responses/TeamMembersAssignmentUpdateResponse.php
@@ -2,7 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\TeamMemberProjectAccessData;
 use Lettermint\Resource;
 
 /**
@@ -10,12 +9,10 @@
  * @property string $name
  * @property string $email
  * @property array<string, mixed> $role
- * @property TeamMemberProjectAccessData $project_access
+ * @property \Lettermint\Objects\TeamMemberProjectAccessData $project_access
  * @property string|null $joined_at
  */
 final class TeamMembersAssignmentUpdateResponse extends Resource
 {
-    protected static array $casts = [
-        'project_access' => TeamMemberProjectAccessData::class,
-    ];
+    //
 }
diff --git a/src/Responses/TeamMembersShowResponse.php b/src/Responses/TeamMembersShowResponse.php
index e180ffb..9ce8a9e 100644
--- a/src/Responses/TeamMembersShowResponse.php
+++ b/src/Responses/TeamMembersShowResponse.php
@@ -2,7 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\TeamMemberProjectAccessData;
 use Lettermint\Resource;
 
 /**
@@ -10,12 +9,10 @@
  * @property string $name
  * @property string $email
  * @property array<string, mixed> $role
- * @property TeamMemberProjectAccessData $project_access
+ * @property \Lettermint\Objects\TeamMemberProjectAccessData $project_access
  * @property string|null $joined_at
  */
 final class TeamMembersShowResponse extends Resource
 {
-    protected static array $casts = [
-        'project_access' => TeamMemberProjectAccessData::class,
-    ];
+    //
 }
diff --git a/src/Responses/TeamResponse.php b/src/Responses/TeamResponse.php
index 404000f..3b7849c 100644
--- a/src/Responses/TeamResponse.php
+++ b/src/Responses/TeamResponse.php
@@ -2,7 +2,6 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\TeamAddonData;
 use Lettermint\Resource;
 
 /**
@@ -14,7 +13,7 @@
  * @property int $tier
  * @property string|null $verified_at
  * @property list<string> $features
- * @property list<TeamAddonData> $addons
+ * @property list<\Lettermint\Objects\TeamAddonData> $addons
  * @property string $created_at
  * @property int $domains_count
  * @property int $projects_count
diff --git a/src/Responses/TeamRolesResponse.php b/src/Responses/TeamRolesResponse.php
index 6074d8a..fe3a9ce 100644
--- a/src/Responses/TeamRolesResponse.php
+++ b/src/Responses/TeamRolesResponse.php
@@ -2,15 +2,14 @@
 
 namespace Lettermint\Responses;
 
-use Lettermint\Objects\TeamRoleData;
 use Lettermint\Resource;
 
 /**
- * @property list<TeamRoleData> $data
+ * @property list<\Lettermint\Objects\TeamRoleData> $data
  */
 final class TeamRolesResponse extends Resource
 {
     protected static array $casts = [
-        'data' => [TeamRoleData::class],
+        'data' => [\Lettermint\Objects\TeamRoleData::class],
     ];
 }
diff --git a/src/Responses/WebhookDeliveryResponse.php b/src/Responses/WebhookDeliveryResponse.php
index a69d6f2..74a0a4e 100644
--- a/src/Responses/WebhookDeliveryResponse.php
+++ b/src/Responses/WebhookDeliveryResponse.php
@@ -7,7 +7,10 @@
 /**
  * @property string $id
  * @property string $webhook_id
- * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test' $event_type
+ * @property string|null $source_scope
+ * @property string|null $source_project_id
+ * @property string|null $source_route_id
  * @property 'pending'|'success'|'failed'|'client_error'|'server_error'|'timeout' $status
  * @property int $attempt_number
  * @property int|null $http_status_code
@@ -18,6 +21,7 @@
  * @property string|null $error_message
  * @property string|null $delivered_at
  * @property string $timestamp
+ * @property bool $sandbox
  */
 final class WebhookDeliveryResponse extends Resource
 {
diff --git a/src/Responses/WebhookResponse.php b/src/Responses/WebhookResponse.php
index ba69d01..a818948 100644
--- a/src/Responses/WebhookResponse.php
+++ b/src/Responses/WebhookResponse.php
@@ -6,16 +6,19 @@
 
 /**
  * @property string $id
- * @property string $route_id
+ * @property 'team'|'project'|'route' $scope
+ * @property list<string> $project_ids
+ * @property list<string> $route_ids
+ * @property string|null $route_id
  * @property string $name
  * @property string $url
  * @property list<string> $events
  * @property bool $enabled
  * @property bool $include_machine_events
- * @property string $secret
  * @property string|null $last_called_at
  * @property string $created_at
  * @property string $updated_at
+ * @property 'live'|'sandbox'|'both' $delivery_mode_filter
  */
 final class WebhookResponse extends Resource
 {
diff --git a/src/Types/ApiTypes.php b/src/Types/ApiTypes.php
index 9b4723e..4cb03e5 100644
--- a/src/Types/ApiTypes.php
+++ b/src/Types/ApiTypes.php
@@ -8,9 +8,10 @@
  * @phpstan-type ApiObject array<string, mixed>
  * @phpstan-type CursorPage array{data: list<ApiObject>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
  * @phpstan-type MessageStatus 'scheduled'|'pending'|'queued'|'quarantined'|'suppressed'|'processed'|'delivered'|'opened'|'clicked'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'canceled'
- * @phpstan-type SendMailRequest array{route?: string, from: string, to: non-empty-list<string>, cc?: list<string>, bcc?: list<string>, reply_to?: list<string>, subject: string, scheduled_at?: string, headers?: array<string, string>, metadata?: array<string, string>, tag?: string|null, tags?: list<array{name: string, value: string}>, settings?: array{track_opens?: bool, track_clicks?: bool, tls?: TlsPolicy}|null, html?: string|null, text?: string|null, attachments?: list<array{filename: string, content: string, content_type?: string|null, content_id?: string|null}>}
+ * @phpstan-type SendMailRequest array{route?: string, from: string, to: non-empty-list<string>, cc?: list<string>, bcc?: list<string>, reply_to?: list<string>, subject: string, scheduled_at?: string, headers?: array<string, string>, metadata?: array<string, string>, tag?: string|null, tags?: list<array{name: string, value: string}>, settings?: array{track_opens?: bool, track_clicks?: bool, tls?: TlsPolicy}|null, html?: string|null, text?: string|null, attachments?: list<array{filename: string, content: string, content_type?: string|null, content_id?: string|null}>, sandbox_result?: SandboxResult}
  * @phpstan-type SendBatchMailRequest list<SendMailRequest>
  * @phpstan-type TlsPolicy 'opportunistic'|'enforced'
+ * @phpstan-type SandboxResult 'delivered'|'hard_bounced'|'soft_bounced'|'deferred'|'failed'|'suppressed'|'spam_complaint'|'auto_replied'|'opened'|'clicked'|'unsubscribed'
  * @phpstan-type AttachmentDelivery 'inline'|'url'
  * @phpstan-type BuiltInTeamRole 'owner'|'admin'|'member'
  * @phpstan-type CursorPaginator array{data: list<string>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
@@ -24,21 +25,22 @@
  * @phpstan-type DomainStatus 'verified'|'partially_verified'|'pending_verification'|'failed_verification'
  * @phpstan-type InitialRoutes 'both'|'transactional'|'broadcast'
  * @phpstan-type MessageAttachmentData array{size: int, filename: string, content_id: string|null, content_type: string}
- * @phpstan-type MessageData array{id: string, type: MessageType, status: MessageStatus, status_changed_at: string|null, scheduled_at: string|null, tag: string|null, tags: list<array{name: string, value: string}>, from_email: string, from_name: string|null, reply_to: list<string>|null, subject: string|null, to: list<MessageRecipientData>|null, cc: list<MessageRecipientData>|null, bcc: list<MessageRecipientData>|null, attachments: list<MessageAttachmentData>|null, metadata: array<string, string>|null, spam_score?: float|int|null, spam_symbols?: list<SpamSymbol>, route_id: string, created_at: string}
+ * @phpstan-type MessageData array{id: string, type: MessageType, status: MessageStatus, status_changed_at: string|null, scheduled_at: string|null, tag: string|null, tags: list<array{name: string, value: string}>, from_email: string, from_name: string|null, reply_to: list<string>|null, subject: string|null, to: list<MessageRecipientData>|null, cc: list<MessageRecipientData>|null, bcc: list<MessageRecipientData>|null, attachments: list<MessageAttachmentData>|null, metadata: array<string, string>|null, spam_score?: float|int|null, spam_symbols?: list<SpamSymbol>, route_id: string, created_at: string, delivery_mode: DeliveryMode, sandbox_result: SandboxResult|null}
  * @phpstan-type MessageEventData array{message_id: string, event: MessageEventType, tag: string|null, tags: list<array{name: string, value: string}>, metadata: array<string, mixed>|null, timestamp: string}
  * @phpstan-type MessageEventType 'scheduled'|'rescheduled'|'canceled'|'released'|'queued'|'processed'|'suppressed'|'delivered'|'auto_replied'|'soft_bounced'|'hard_bounced'|'spam_complaint'|'failed'|'blocked'|'policy_rejected'|'unsubscribed'|'opened'|'clicked'|'inbound_received'|'inbound_queued'|'inbound_spam_blocked'|'inbound_released'|'inbound_processed'|'inbound_retry'
- * @phpstan-type MessageListData array{id: string, type: MessageType, status: MessageStatus, scheduled_at: string|null, spam_score?: float|int|null, from_email: string, from_name: string|null, subject: string|null, to: list<MessageRecipientData>|null, cc: list<MessageRecipientData>|null, bcc: list<MessageRecipientData>|null, reply_to: list<string>|null, tag: string|null, tags: list<array{name: string, value: string}>, status_changed_at: string|null, created_at: string}
- * @phpstan-type MessageRecipientData array{email: string, name: string|null}
+ * @phpstan-type MessageListData array{id: string, type: MessageType, status: MessageStatus, scheduled_at: string|null, spam_score?: float|int|null, from_email: string, from_name: string|null, subject: string|null, to: list<MessageRecipientData>|null, cc: list<MessageRecipientData>|null, bcc: list<MessageRecipientData>|null, reply_to: list<string>|null, tag: string|null, tags: list<array{name: string, value: string}>, status_changed_at: string|null, created_at: string, delivery_mode: DeliveryMode, sandbox_result: SandboxResult|null}
+ * @phpstan-type MessageRecipientData array{email: string, name: string|null, sandbox_result: SandboxResult|null}
  * @phpstan-type MessageStatsData array{messages_transactional: int, messages_broadcast: int, messages_inbound: int, deliverability: float|int}
  * @phpstan-type MessageType 'inbound'|'outbound'
  * @phpstan-type Plan 'free'|'starter'|'growth'|'pro'
  * @phpstan-type ProjectAccessScope 'all'|'selected'
- * @phpstan-type ProjectData array{id: string, name: string, smtp_enabled: bool, redact_email_content: bool, default_route_id: string|null, token_generated_at: string|null, token_last_used_at: string|null, token_last_used_ip: string|null, routes?: list<RouteListData>, routes_count?: int, domains?: list<DomainData>, domains_count?: int, last_28_days?: MessageStatsData|null, created_at: string, updated_at: string}
+ * @phpstan-type ProjectData array{id: string, name: string, smtp_enabled: bool, redact_email_content: bool, default_route_id: string|null, token_generated_at: string|null, token_last_used_at: string|null, token_last_used_ip: string|null, routes?: list<RouteListData>, routes_count?: int, domains?: list<DomainData>, domains_count?: int, last_28_days?: MessageStatsData|null, created_at: string, updated_at: string, delivery_mode: DeliveryMode}
  * @phpstan-type ProjectListData array{id: string, name: string, smtp_enabled: bool, routes_count: int, domains_count: int, last_28_days: MessageStatsData, created_at: string, updated_at: string}
  * @phpstan-type RbacConflictCode 'stale_resource'|'owner_protected'|'last_owner'|'built_in_role_immutable'|'custom_role_requires_pro'
  * @phpstan-type RbacPermission 'team:manage'|'billing:manage'|'security:manage'|'audit:read'|'support:manage'|'members:read'|'members:manage'|'roles:manage'|'team_tokens:read'|'team_tokens:manage'|'team_tokens:rotate'|'team_tokens:revoke'|'projects:create'|'team_suppressions:read'|'team_suppressions:add'|'team_suppressions:remove'|'projects:read'|'projects:manage'|'projects:delete'|'routes:read'|'routes:manage'|'routes:delete'|'domains:read'|'domains:manage'|'domains:delete'|'project_tokens:read'|'project_tokens:manage'|'project_tokens:rotate'|'project_tokens:revoke'|'webhooks:read'|'webhooks:manage'|'webhooks:delete'|'webhooks:rotate_secret'|'stats:read'|'messages:read'|'messages:read_content'|'messages:send'|'suppressions:read'|'suppressions:add'|'suppressions:remove'
  * @phpstan-type RecordType 'TXT'|'CNAME'|'MX'
- * @phpstan-type RouteData array{id: string, project_id: string, slug: string, name: string, route_type: RouteType, is_default: bool, inbound_address?: string|null, inbound_domain?: string|null, inbound_domain_verified_at?: string|null, inbound_spam_threshold?: float|int|null, attachment_delivery?: AttachmentDelivery, settings?: array{disable_hosted_unsubscribe?: bool, track_opens?: bool, track_clicks?: bool, generate_plaintext_fallback?: bool, suppress_auto_responders?: bool, suppress_disposable_recipients?: bool, tls?: TlsPolicy, redact_email_content?: bool, attachment_delivery?: array<string, mixed>}|null, project?: ProjectListData, webhooks_count?: int, suppressed_recipients_count?: int, statistics?: list<RouteStatisticData>, created_at: string, updated_at: string}
+ * @phpstan-type RescheduleMessageRequest array{scheduled_at: string}
+ * @phpstan-type RouteData array{id: string, project_id: string, slug: string, name: string, route_type: RouteType, is_default: bool, inbound_address?: string|null, inbound_mx_hostname?: string, inbound_domain?: string|null, inbound_domain_verified_at?: string|null, inbound_spam_threshold?: float|int|null, attachment_delivery?: AttachmentDelivery, settings?: array{disable_hosted_unsubscribe?: bool, track_opens?: bool, track_clicks?: bool, generate_plaintext_fallback?: bool, suppress_auto_responders?: bool, suppress_disposable_recipients?: bool, tls?: TlsPolicy, redact_email_content?: bool, attachment_delivery?: array<string, mixed>}|null, project?: ProjectListData, webhooks_count?: int, suppressed_recipients_count?: int, statistics?: list<RouteStatisticData>, created_at: string, updated_at: string}
  * @phpstan-type RouteListData array{id: string, slug: string, name: string, route_type: RouteType, is_default: bool, webhooks_count: int, suppressed_recipients_count: int, created_at: string, updated_at: string}
  * @phpstan-type RouteStatisticData array{date: string, sent_count: int, delivered_count: int, opened_count: int, clicked_count: int, hard_bounce_count: int, spam_complaint_count: int, inbound_received_count: int, observed_opened_count?: int|null, human_opened_count?: int|null, privacy_opened_count?: int|null, effective_opened_count: int|null, machine_opened_count: int|null, machine_clicked_count: int|null}
  * @phpstan-type RouteType 'transactional'|'broadcast'|'inbound'
@@ -50,13 +52,14 @@
  * @phpstan-type StatsTotalsData array{sent: int, delivered: int, hard_bounced: int, spam_complaints: int, opened: int|null, clicked: int|null, inbound: StatsInboundData, transactional: StatsTypeData|null, broadcast: StatsTypeData|null, observed_opened?: int|null, human_opened?: int|null, privacy_opened?: int|null, effective_opened: int|null, machine_opened: int|null, machine_clicked: int|null}
  * @phpstan-type StatsTypeData array{sent: int, hard_bounced: int, spam_complaints: int}
  * @phpstan-type StoreDomainData array{domain: string}
- * @phpstan-type StoreProjectData array{name: string, smtp_enabled?: bool, initial_routes?: InitialRoutes, short_token?: bool}
+ * @phpstan-type StoreProjectData array{name: string, smtp_enabled?: bool, initial_routes?: InitialRoutes, short_token?: bool, delivery_mode?: DeliveryMode}
  * @phpstan-type StoreRouteData array{name: string, route_type: RouteType, slug?: string|null}
- * @phpstan-type StoreSuppressionData array{email?: string|null, emails?: non-empty-list<string>|null, reason: SuppressionReason, scope: SuppressionScope, route_id?: string|null, project_id?: string|null}
- * @phpstan-type StoreWebhookData array{route_id: string, name: string, url: string, events: non-empty-list<WebhookEvent>, enabled?: bool|null, include_machine_events?: bool|null}
- * @phpstan-type SuppressedRecipientData array{id: string, type: SuppressionType, value: string, reason: SuppressionReason, scope: SuppressionScope, project_id: string|null, route_id: string|null, source_message?: SuppressionSourceMessageData|null, created_at: string, updated_at: string}
+ * @phpstan-type StoreSuppressionData array{email?: string|null, emails?: non-empty-list<string>|null, reason: SuppressionReason, scope: SuppressionScope, route_id?: string|null, project_id?: string|null, applies_to?: SuppressionAppliesTo|null}
+ * @phpstan-type StoreWebhookData array{name: string, url: string, events: non-empty-list<WebhookEvent>, enabled?: bool|null, include_machine_events?: bool|null, scope?: WebhookScope|null, project_ids?: list<string>, route_ids?: list<string>, route_id?: string|null, delivery_mode_filter?: WebhookDeliveryModeFilter|null}
+ * @phpstan-type SuppressedRecipientData array{id: string, type: SuppressionType, value: string, reason: SuppressionReason, scope: SuppressionScope, applies_to: SuppressionAppliesTo, project_id: string|null, route_id: string|null, source_message?: SuppressionSourceMessageData|null, created_at: string}
+ * @phpstan-type SuppressionAppliesTo 'all'|'broadcast'
  * @phpstan-type SuppressionReason 'spam_complaint'|'hard_bounce'|'unsubscribe'|'manual'
- * @phpstan-type SuppressionScope 'global'|'team'|'project'|'route'
+ * @phpstan-type SuppressionScope 'team'|'project'|'route'
  * @phpstan-type SuppressionSourceMessageData array{id: string, available: bool, subject: string|null, created_at: string|null}
  * @phpstan-type SuppressionType 'email'|'domain'|'extension'
  * @phpstan-type TeamAddonData array{type: string|null, expires_at: string|null}
@@ -68,24 +71,28 @@
  * @phpstan-type TeamUsageDetailData array{current_period: TeamUsagePeriodData, historical_usage: list<TeamUsagePeriodData>}
  * @phpstan-type TeamUsagePeriodData array{usage: int, last_incremented_at: string|null, period_start: string, period_end: string}
  * @phpstan-type UpdateDomainProjectsData array{project_ids: non-empty-list<string>}
- * @phpstan-type UpdateProjectData array{name?: string|null, smtp_enabled?: bool|null, redact_email_content?: bool|null, default_route_id?: string|null}
+ * @phpstan-type UpdateProjectData array{name?: string|null, smtp_enabled?: bool|null, redact_email_content?: bool|null, default_route_id?: string|null, delivery_mode?: DeliveryMode|null}
  * @phpstan-type UpdateRouteData array{name?: string|null, settings?: UpdateRouteSettingsData|null, inbound_settings?: UpdateRouteInboundSettingsData|null}
  * @phpstan-type UpdateRouteInboundSettingsData array{inbound_domain?: string|null, inbound_spam_threshold?: float|int|null, attachment_delivery?: AttachmentDelivery|null}
  * @phpstan-type UpdateRouteSettingsData array{track_opens?: bool|null, track_clicks?: bool|null, generate_plaintext_fallback?: bool|null, suppress_auto_responders?: bool|null, suppress_disposable_recipients?: bool|null, tls?: TlsPolicy|null, disable_hosted_unsubscribe?: bool|null, redact_email_content?: bool|null}
  * @phpstan-type UpdateTeamData array{name?: string|null}
  * @phpstan-type UpdateTeamMemberAssignmentData array{role_id: string, project_access: array{scope: ProjectAccessScope, project_ids?: list<string>}}
- * @phpstan-type UpdateWebhookData array{name?: string, url?: string, events?: non-empty-list<WebhookEvent>, enabled?: bool, include_machine_events?: bool}
- * @phpstan-type WebhookData array{id: string, route_id: string, name: string, url: string, events: non-empty-list<string>, enabled: bool, include_machine_events: bool, secret?: string, last_called_at: string|null, created_at: string, updated_at: string}
- * @phpstan-type WebhookDeliveryData array{id: string, webhook_id: string, event_type: WebhookEvent, status: WebhookDeliveryStatus, attempt_number: int, http_status_code: int|null, duration_ms: int|null, payload: non-empty-list<string>, response_body: string|null, response_headers: list<string>|null, error_message: string|null, delivered_at: string|null, timestamp: string}
- * @phpstan-type WebhookDeliveryListData array{id: string, webhook_id: string, event_type: WebhookEvent, status: WebhookDeliveryStatus, attempt_number: int, http_status_code: int|null, duration_ms: int|null, delivered_at: string|null, created_at: string}
+ * @phpstan-type UpdateWebhookData array{name?: string, url?: string, events?: non-empty-list<WebhookEvent>, enabled?: bool, include_machine_events?: bool, scope?: WebhookScope, project_ids?: list<string>, route_ids?: list<string>, route_id?: string|null, delivery_mode_filter?: WebhookDeliveryModeFilter}
+ * @phpstan-type WebhookData array{id: string, scope: WebhookScope, project_ids: list<string>, route_ids: list<string>, route_id: string|null, name: string, url: string, events: list<string>, enabled: bool, include_machine_events: bool, last_called_at: string|null, created_at: string, updated_at: string, delivery_mode_filter: WebhookDeliveryModeFilter}
+ * @phpstan-type WebhookDeliveryData array{id: string, webhook_id: string, event_type: WebhookEvent, source_scope: string|null, source_project_id: string|null, source_route_id: string|null, status: WebhookDeliveryStatus, attempt_number: int, http_status_code: int|null, duration_ms: int|null, payload: non-empty-list<string>, response_body: string|null, response_headers: list<string>|null, error_message: string|null, delivered_at: string|null, timestamp: string, sandbox: bool}
+ * @phpstan-type WebhookDeliveryListData array{id: string, webhook_id: string, event_type: WebhookEvent, source_scope: string|null, source_project_id: string|null, source_route_id: string|null, status: WebhookDeliveryStatus, attempt_number: int, http_status_code: int|null, duration_ms: int|null, delivered_at: string|null, created_at: string}
  * @phpstan-type WebhookDeliveryStatus 'pending'|'success'|'failed'|'client_error'|'server_error'|'timeout'
- * @phpstan-type WebhookEvent 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'suppression.added'|'suppression.removed'|'webhook.test'
- * @phpstan-type WebhookListData array{id: string, route_id: string, name: string, url: string, events: list<WebhookEvent>, enabled: bool, last_called_at: string|null, created_at: string, updated_at: string}
+ * @phpstan-type WebhookEvent 'message.created'|'message.sent'|'message.delivered'|'message.auto_replied'|'message.hard_bounced'|'message.soft_bounced'|'message.spam_complaint'|'message.failed'|'message.suppressed'|'message.unsubscribed'|'message.opened'|'message.clicked'|'message.inbound'|'message.policy_rejected'|'message.scheduled'|'message.rescheduled'|'message.canceled'|'message.released'|'suppression.added'|'suppression.removed'|'webhook.test'
+ * @phpstan-type WebhookListData array{id: string, scope: WebhookScope, project_ids: list<string>, route_ids: list<string>, route_id: string|null, name: string, url: string, events: list<string>, enabled: bool, last_called_at: string|null, created_at: string, updated_at: string}
+ * @phpstan-type WebhookScope 'team'|'project'|'route'
+ * @phpstan-type WebhookSecretData array{id: string, scope: WebhookScope, project_ids: list<string>, route_ids: list<string>, route_id: string|null, name: string, url: string, events: list<string>, enabled: bool, include_machine_events: bool, secret: string, last_called_at: string|null, created_at: string, updated_at: string, delivery_mode_filter: WebhookDeliveryModeFilter}
+ * @phpstan-type DeliveryMode 'live'|'sandbox'
+ * @phpstan-type WebhookDeliveryModeFilter 'live'|'sandbox'|'both'
  * @phpstan-type StatsQuery StatsRequestData
- * @phpstan-type SendMailResponse array{message_id: string|null, status: MessageStatus, scheduled_at?: string}
+ * @phpstan-type SendMailResponse array{message_id: string|null, status: MessageStatus, scheduled_at: string, sandbox?: bool, sandbox_result?: SandboxResult}|array{message_id: string|null, status: MessageStatus, sandbox?: bool, sandbox_result?: SandboxResult}
  * @phpstan-type SendBatchMailResponse list<SendMailResponse>
- * @phpstan-type RescheduleMessageRequest array{scheduled_at: string}
  * @phpstan-type RescheduleMessageResponse array{message_id: string, status: MessageStatus|null, scheduled_at: string|null}
+ * @phpstan-type CancelScheduledMessageResponse array{message_id: string, status: MessageStatus|null, scheduled_at: string|null}
  * @phpstan-type DomainListResponse array{data: list<DomainListData>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
  * @phpstan-type DomainResponse DomainData
  * @phpstan-type DeleteDomainResponse array{message: string}
@@ -93,8 +100,8 @@
  * @phpstan-type VerifyDnsRecordResponse array{message: string}
  * @phpstan-type UpdateDomainProjectsResponse array{data: DomainData, message: string}
  * @phpstan-type BlockedFileTypesResponse array{extensions: list<string>, mime_types: list<string>}
- * @phpstan-type MessageListResponse array{data: list<MessageListData>, links: list<string>, meta: array{path: string|null, per_page: int, next_cursor: string|null, next_cursor_url: string|null, prev_cursor: string|null, prev_cursor_url: string|null}}
  * @phpstan-type MessageResponse MessageData
+ * @phpstan-type MessageListResponse array{data: list<MessageListData>, links: list<string>, meta: array{path: string|null, per_page: int, next_cursor: string|null, next_cursor_url: string|null, prev_cursor: string|null, prev_cursor_url: string|null}}
  * @phpstan-type MessageEventsResponse array{data: list<MessageEventData>, links: list<string>, meta: array{path: string|null, per_page: int, next_cursor: string|null, next_cursor_url: string|null, prev_cursor: string|null, prev_cursor_url: string|null}}
  * @phpstan-type ProcessInboundMessageResponse array{data: array{message_id: string, status: 'queued', webhook_target_count: int}}
  * @phpstan-type ProjectListResponse array{data: list<ProjectListData>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
@@ -121,12 +128,12 @@
  * @phpstan-type TeamMembersShowResponse TeamMemberData
  * @phpstan-type TeamMembersAssignmentUpdateResponse TeamMemberData
  * @phpstan-type WebhookListResponse array{data: list<WebhookListData>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
- * @phpstan-type CreateWebhookResponse array{data: WebhookData, message: string}
+ * @phpstan-type CreateWebhookResponse array{data: WebhookSecretData, message: string}
  * @phpstan-type WebhookResponse WebhookData
  * @phpstan-type UpdateWebhookResponse array{data: WebhookData, message: string}
  * @phpstan-type DeleteWebhookResponse array{message: string}
  * @phpstan-type TestWebhookResponse array{message: string, delivery_id: string}
- * @phpstan-type RegenerateWebhookSecretResponse array{data: WebhookData, message: string}
+ * @phpstan-type RegenerateWebhookSecretResponse array{data: WebhookSecretData, message: string}
  * @phpstan-type WebhookDeliveriesResponse array{data: list<WebhookDeliveryListData>, path: string|null, per_page: int, next_cursor: string|null, next_page_url: string|null, prev_cursor: string|null, prev_page_url: string|null}
  * @phpstan-type WebhookDeliveryResponse WebhookDeliveryData
  */
diff --git a/tests/Endpoints/EmailEndpointTest.php b/tests/Endpoints/EmailEndpointTest.php
index 5ea51d9..d0f85c2 100644
--- a/tests/Endpoints/EmailEndpointTest.php
+++ b/tests/Endpoints/EmailEndpointTest.php
@@ -25,6 +25,7 @@
         ->toBeString()
         ->toContain('@phpstan-import-type SendMailRequest')
         ->toContain('@phpstan-import-type SendBatchMailRequest')
+        ->toContain('@phpstan-import-type SandboxResult')
         ->not->toContain('@phpstan-type SendResponse');
 
     expect($methodReflection->getReturnType()?->getName())->toBe(SendMailResponse::class);
@@ -273,6 +274,34 @@
         ->send();
 });
 
+test('it handles a Sandbox result', function () {
+    $this->httpClient
+        ->shouldReceive('post')
+        ->once()
+        ->with('/v1/send', [
+            'from' => 'sender@example.com',
+            'to' => ['recipient@example.com'],
+            'subject' => 'Test Subject',
+            'sandbox_result' => 'hard_bounced',
+        ], [])
+        ->andReturn([
+            'message_id' => '123',
+            'status' => 'hard_bounced',
+            'sandbox' => true,
+            'sandbox_result' => 'hard_bounced',
+        ]);
+
+    $response = $this->endpoint
+        ->from('sender@example.com')
+        ->to('recipient@example.com')
+        ->subject('Test Subject')
+        ->sandboxResult('hard_bounced')
+        ->send();
+
+    expect($response->sandbox)->toBeTrue()
+        ->and($response->sandbox_result)->toBe('hard_bounced');
+});
+
 test('it handles attachment content type', function () {
     $attachment = [
         'filename' => 'invite.ics',
diff --git a/tests/SdkCoverageTest.php b/tests/SdkCoverageTest.php
index 640397e..af15614 100644
--- a/tests/SdkCoverageTest.php
+++ b/tests/SdkCoverageTest.php
@@ -206,3 +206,33 @@
         ->toContain('spam_score?: float|int|null')
         ->toContain('scope: SuppressionScope');
 });
+
+test('generated php api types preserve scheduled message and cursor aliases', function () {
+    $typesSource = file_get_contents(__DIR__.'/../src/Types/ApiTypes.php');
+
+    expect($typesSource)
+        ->toContain('@phpstan-type CursorPaginator array{')
+        ->toContain('@phpstan-type RescheduleMessageResponse array{')
+        ->toContain('@phpstan-type CancelScheduledMessageResponse array{')
+        ->toContain('@phpstan-type ProcessInboundMessageResponse array{');
+});
+
+test('generated php api types include Sandbox contracts', function () {
+    $typesSource = file_get_contents(__DIR__.'/../src/Types/ApiTypes.php');
+    $sendResponseSource = file_get_contents(__DIR__.'/../src/Responses/SendMailResponse.php');
+    $webhookDeliverySource = file_get_contents(__DIR__.'/../src/Objects/WebhookDeliveryData.php');
+
+    expect($typesSource)
+        ->toContain("@phpstan-type DeliveryMode 'live'|'sandbox'")
+        ->toContain('@phpstan-type SandboxResult ')
+        ->toContain('sandbox_result?: SandboxResult')
+        ->toContain('delivery_mode: DeliveryMode')
+        ->toContain('delivery_mode_filter: WebhookDeliveryModeFilter')
+        ->toContain('sandbox: bool');
+
+    expect($sendResponseSource)
+        ->toContain('$sandbox')
+        ->toContain('$sandbox_result');
+
+    expect($webhookDeliverySource)->toContain('@property bool $sandbox');
+});