Notifications not received in proton mail app

Hi all,

on my pretty old Samsung Galaxy Tab 2 P3100 I installed /e/ OS following the intructions found here.

I tried all the setting modifications suggested above, but still I can’t get any notification from the ProtonMail app.

  • /e/ system version: e-0.9-n-20200618-1939-UNOFFICIAL-espresso3g
  • Android Version is 7.1.2.
  • ProtonMail app v1.13.22(748) (installed twice to test if it could help)

I receive the notifications from other apps like Signal, Threema and so on.

Does anyone of you have any suggestion on what to do to make the notifications working?

Thanks in advance for your help!