Using older versions of Outlook for Mac in business environments
Hello!
I have the exact same issue, Outlook Mac 16.86.3 (24063014), I am on the preview channel.
IMAP is directly connected and not through Microsoft Sync Technology.
Issue seems to be limited to signed emails from the main German post office (DHL). I am suspecting this is related to the signed status of the email. Other email clients can delete the email just fine.
Any solution in sight?
Best regards,
Werner