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Maniphest T4525

GpgOL: Error when moving opened S/MIME Mails with attachments on Exchange
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Description

If an S/MIME Mail has attachments it cannot be moved while it is decrypted / visible.

I was able to reproduce this problem with an Exchange Server and latest Outlook

Details

Version
2.3.3

Revisions and Commits

rO GpgOL
rO91c86d7cd53a Restore S/MIME message class after decrypt
rO2216aaecb56f Fix moving / closing S/MIME mails with attachments

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Event Timeline

• aheinecke created this task.May 20 2019, 2:05 PM
• aheinecke added a subtask: T4523: Gpg4win: Multiple problems reported 05-2019.
• aheinecke mentioned this in T4543: GpgOL: Moved S/MIME mails can no longer be read by other clients.May 28 2019, 3:10 PM
• aheinecke added a comment.May 28 2019, 3:16 PM

My understanding of this issue and the fix for it is that Outlook with exchange detects that our mails are S/MIME mails. As the attachments are modified by us outlook wants to save the changes on move. This fails because it can't do the crypto. Leading to the error. This also happens when such a mail is closed.

The trick is to save the mail after our changes were discarded so that the message class becomes a gpgol message class in MAPI. The problem with that is outlined in T4543

• aheinecke added a commit: rO2216aaecb56f: Fix moving / closing S/MIME mails with attachments.May 28 2019, 3:31 PM
• aheinecke added a commit: rO91c86d7cd53a: Restore S/MIME message class after decrypt.Oct 3 2019, 3:30 PM
• aheinecke added a project: g10code.Oct 4 2019, 4:32 PM
• aheinecke moved this task from Backlog to In Progress on the g10code board.Oct 4 2019, 4:34 PM
• aheinecke closed this task as Resolved.Jan 11 2021, 9:29 AM

This works with the message class changing. We still need to do it for OpenPGP, too.

• aheinecke closed subtask T4523: Gpg4win: Multiple problems reported 05-2019 as Invalid.Jul 29 2022, 3:15 PM