I have been using this service now for 5 years but I am giving up. It does not work on my android phone. Too many issues to.describe but basically can not open e mail…awful what’s going on?
The BlueMail android app works great on my Android phone. You should give it a try.
A bit on an advertisement for a full featured android email app (that i’m happy with): https://email.faircode.eu/
You can use any browser on android. I have android 10 and have no issues using several browsers. I mainly use Firefox Nightly and Brave. I feel the lack of a proprietary mail app, especially one that integrate well aliases and folders, but it’s not a problem for me. For mail apps, I suggest using BlueMail or MailDroid
I am a huge fan as well, works perfectly fine with Runbox for me!