Just switched from K-9 mail to Thunderbird mail on my phone. Migration process was very simple as Thunderbird has taken easily the backup of K-9. The one thing that still seems unclear : how did Thunderbird take this backup with all its passwords so easily?
4 months ago
@hansbrix is correct. It's the same app with a coat of paint. If you loved K-9 mail you'll love Thunderbird mobile. · 4 months ago