Delta Chat version
Get notifications when new messages arrive.
No notifications when new messages arrive
Steps to reproduce the problem
Set up my device (Moto Z3 Play Version from f-droid,) and the device of a friend (Moto G7 Plus, Play Store). Same provider (posteo.de), Android 9
2. Send a new message. The message arrives, but there is no notifications.
3. The Accu optimization is off.
4. Notifications are on for the app.