Hi Felix,
yes, I am using that ebuild - because there is no official gentoo package so far.
As gentoo is a meta distribution, it takes the actual repoistory from git and compiles it on my gentoo machine.
I just tried and deleted my profile in Outlook and recreated it.
Device ID canged when having a look with z-push-admin - but the error is still present, when I delete an email.
Edit:
the log entry does not appear, when I move/delete a single mail.
it appear even after creating a new profile, when deleting all mails via “right-click” --> “Ordner leeren” (means: delete all mails in trash)
My Outlook computer is not in the same network as the server. It is connected via DSL and VPN.
Maybe the problem is just a too slow connection that leads to sync problems.
Greetings
Vogi