@erAck @tinx @thunderbird @fdroidorg There is an easy migration: Update to the latest version of K9, install Thunderbird, and select "import from app" or something like this, I think it is the third option. You can then select K9 and all settings and passwords are imported.
@zaunkoenig
I'll keep that in mind for later.. thanks.
Probably should be prominently added to the com.fsck.k9 description.
@tinx @thunderbird @fdroidorg