feat(smtp): replace CID references in HTML with attachment preview URLs - #346
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butschster merged 2 commits intoAug 17, 2026
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parseEmail already strips angle brackets from Content-ID at parse time (handler.go:322), so the test's expected value was wrong. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HTP5juELjuCdbVECrKVMSs
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Summary
cid:in HTML emails are now replaced with attachment preview URLs (/api/smtp/attachments/{eventUUID}/preview/{attachmentUUID}), so embedded images render correctly in the UI instead of showing brokencid:references.Content-IDare mapped from CID to their preview URL and substituted into the parsed HTML body during SMTP message handling.Test plan
go test ./modules/smtp/...— addedTestParseEmail_InlineAttachmentWithCID,TestReplaceCIDReferences, andTestReplaceCIDReferences_NoCIDcovering CID parsing and replacement, including the no-CID case.