Maniphest T8161

Invalid MimeType Related instead of Mixed
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timegrid
Authored By
mmontkowski
Mar 10 2026, 4:44 PM
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mmontkowski
timegrid

Description

If an Mail only contains unrelated attachments (No CID) those don't get send as multipated/mixed but multipart/related

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Event Timeline

mmontkowski created this task.Mar 10 2026, 4:44 PM
mmontkowski mentioned this in Unknown Object (Maniphest Task).Mar 16 2026, 9:22 AM
• ebo changed the task status from Open to Testing.Mar 16 2026, 10:30 AM
• ebo triaged this task as Normal priority.
• ebo added projects: gpgol, gpd5x.
• ebo moved this task from Backlog to Done on the gpgol board.
• ebo moved this task from Backlog to WIP on the gpd5x board.
• ebo added a project: vsd34.Mar 25 2026, 9:32 AM
timegrid moved this task from Backlog to WIP on the vsd34 board.Mar 30 2026, 2:31 PM
mmontkowski mentioned this in rO54601303ea4f: Return proper mutipart attachment type.Fri, Jul 10, 2:41 PM
timegrid moved this task from WIP to QA on the gpd5x board.Tue, Jul 14, 11:34 AM
timegrid added a subscriber: timegrid.EditedFri, Jul 17, 1:04 PM

A pgp signed/encrypted message with drag&drop attachments (no CID i guess) will contain the attachments in an multipart/mixed part:

  • multipart/signed
    • multipart/mixed
      • multipart/alternative (mail content)
        • text/plain
        • text/html
      • application/vnd.oasis.opendocument.text (odt attachment)
      • application/pdf (pdf attachment)
      • ...
    • application/pgp-signature

@mmontkowski Does this confirm, that the issue is fixed? How to test this otherwise?

timegrid closed this task as Resolved.Fri, Jul 17, 4:26 PM
timegrid claimed this task.

I also tested a mail with mixed related/unrelated images, looks fine:

  • multipart/signed
    • multipart/mixed
      • multipart/related
        • multipart/alternative (mail content)
          • text/plain
          • text/html
        • image/png (related image, via insert image)
      • image/png (unrelated image, via attach file)
    • application/pgp-signature
timegrid moved this task from QA to gpd-5.1.0 on the gpd5x board.Fri, Jul 17, 4:26 PM
timegrid edited projects, added gpd5x (gpd-5.1.0); removed gpd5x.