Considerations for XMPP users - monal-im/Monal GitHub Wiki
All versions
Server software: Make sure that your server runs Prosody, Ejabberd or Openfire, supported versions are listed under Considerations for XMPP server admins. Avoid all other servers!Especially Metronome!
iOS version only
Not working notifications:
Make sure to turn on background app refresh in iOS settings and allow notifications, see this screenshots:
macOS version only
Not working notifications:
Navigate to Settings
Navigate to Notifications
Allow Monal to send notifications
Notifications always show New Message
Check if Monal is installed in the correct location (/Applications/)