I want to setup the mail app on a Huawei P40 Pro, but K-9 can’t acces my Gmail account. Can i make something to make it work?
Please see the discussion in #525
on how to enable “less secure apps” and set up app-specific passwords. If you have a different problem and/or the issue isn’t resolved after setting things up as described, please explain in more detail as “can’t acces my Gmail account” is hard to troubleshoot.
Thank you… 
That was the problem! Thanks again…