Thanks a lot for your reply. I will give it another try in a view days. I therefor have another question.Where in the Admin Panel can i set the truste...

I have now rolled back to Zimbra because of too many issues. Do you think it could have to do with exporting the Server config from the Zimbra to migr...

Also another thing would be that how can i set that TLS 1.3 and TLS 1.2 is allowed? Currently somehow it seems that only TLS 1.3 is allowed unless i s...

Since i can not edit my previous post i want to say that zimbraMtaSmtpSaslAuthEnable is actually set to noI had it to yes to see if that helps anythin...