K-9 seems promising, it is acquired by thunderbird and planning to become thunderbird bird mobile. It has office 365 support, but IIRC it is pretty convoluted to add a office 365 account. https://www.f-droid.org/en/packages/com.fsck.k9/

Another alternative is fairmail: https://www.f-droid.org/en/packages/eu.faircode.email/ , developed by the developer of netguard.

[–] floppy@rabbitea.rs 4 points 1 year ago (1 children)

I used to use K9 long time ago, but had issues with notifications not working properly. I've been using something not FOSS which was OK but I wasn't 100% happy with. After reading about FairEmail on another thread the other day, I've now adopted that and so far it is working great. It has way too many options though!

[–] jungekatz@lemmy.world 1 points 1 year ago

I generally dont want notifs on the email anyway ! I have the official gmail app on my android and i dont get them notifications

[–] jungekatz@lemmy.world 4 points 1 year ago

Ah i trust thunderbird !

[–] pewgar_seemsimandroid@lemmy.blahaj.zone 1 points 1 year ago

k-9 is good for storing gmail accounts ig