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GPGOL - Leere Nachricht kann nicht signiert werden
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gpg4win with gpgol and MS-Office worked well for quite some time.
I can't say, what happened, but since a few weeks I am no longer able to sign/encrypt email messages with outlook:
I always get the following (German) message: "An empty email can't be signed or encrypted"
I can decrypt received emails without any problem.


  1. gdpol is reported to be responsible for a "slow start" of outlook (0.02 sec.)
  2. I've already deactivated and re-activated the GPGOL add-in in Outlook
  3. I've already re-stalled the most recent gpg4win


gpgol 2.5.1; gpg4win 4.0.0; outlook version 2203

Event Timeline

aheinecke triaged this task as Normal priority.Apr 8 2022, 2:27 PM
aheinecke added a subscriber: aheinecke.

Could you please create a log file using the debug settings with Outlook Object Model debugging enabled?

I suspect that there is a conflict with another Addin causing us not to be able to access the mail body, so you could also try to disable other plugins in Outlook

I had already tried both, to deselct all other add-ins and to select all possible add-ins.
No change of the behaviour.

I've selected logging standard + Outlook API, but system does not create any log file.
I've closed and re-opened Outlook ... the same ... no log.

Have you selected an Output file in a location where you can write files with your permissions?