Frage: Mail opens but no Window

I have update the OS system to Sierra. Recently I see problems with Mail. It opens but there is no viewer Window. I have tried several things (delete Mail and other files in Library) but nothing works. I guess it has to do with the accounts. Any suggestions?

MacBook Pro (Retina, 13-inch, Late 2013), iOS 10, 10.12.6 SIERRA

Gepostet am


Seiteninhalt wurde geladen

Es sind keine Antworten vorhanden.
Benutzerprofil für Benutzer: Ronny3004

Frage: Mail opens but no Window