I use AquaMail 1.20
In Android settings
Click onto "I" in the right upper Corner
This is working for me
It breaks viper4android on RevOS
I have a Mi Mix2s , stock rom, unlocked and rooted with Magisk.
GPay worked for month but since a week it doesnt.
I contacted Google and they told me, they discovered my unlocked BL and thats the reason why it doesnt work anymore
No link to the latest 12.1- Release??