fix(delegation): load proxied images in shared mailboxes - #13706
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abhinavohri wants to merge 1 commit into
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The image proxy checked message ownership against the viewing user, so delegates received 400 responses for remote images. Resolve access to the message first, then use the effective account owner for the existing lookup. Assisted-by: Codex:gpt-5 Signed-off-by: Abhinav Ohri <abhinavohri13@gmail.com>
abhinavohri
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ChristophWurst,
GretaD and
kesselb
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September 19, 2026 10:32
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Summary
The image proxy looked up messages under the viewing user, so delegated mailbox users received a 400 response for remote images. Resolve access for the message first, then use the account owner for the existing message lookup. The HMAC check remains unchanged.
Fixes #13438
Screenshots
After — delegated user
Before — delegated user
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