[alicepuper]

Zitat von martinuss

Aber die von mir gewählte Email App K9 läuft nicht richtig

Könnte daran liegen, daß K9 seit 2018 nicht mehr weiternetwickelt wurde.

Unfortunately, it seems that K-9 Mail is no longer in active development because the last update was released in September 2018. Because of this, many users running the latest version of the Android operating system have reported problems with email synchronization, notifications, and authentication. Unless you have an older smartphone, you should probably look for a newer Android email app.