I’ve tried FairEMail and SimpleEmail, but they require opening the app to see emails. They seem to be forks or versions of each other without background syncing and (sorry) a terribly ugly interface. Neither seem to have filters.
Background syncing shouldn’t be constantly on, just every 5-10 minutes or so. Normally I check once a day, but forget to quite easily and then miss an email. If it checked automatically even twice daily, that’d be enough.
try K-9 Mail, it has a configurable background syncing: https://f-droid.org/packages/com.fsck.k9
Thunderbird?
On android? Couldn’t find it on f-droid
https://f-droid.org/packages/net.thunderbird.android
it’s basically a K-9 rebrand for now.
FairEmail pops up notifications of new emails for me
Your OS might be killing (outright or effectively) your app - check dontkillmyapp.com for possible solutions. Or the app doesn’t have notifications enabled at the app and system level.
