

Just continue to use the app and enjoy it getting better over time. Changes for existing K-9 Mail usersĪs a user of K-9 Mail, there’s nothing you have to do right now. Once a certain level of functionality is reached, K-9 Mail will transform into Thunderbird on Android, and will be renamed accordingly. The roadmap for the near future includes improved account setup using Thunderbird account auto-configuration, improved folder management, support for message filters, and synchronization between the mobile app and Thunderbird on the desktop. And so it was a very easy decision to work together.

Both projects share the same core values: privacy, open standards, and an open development process. Our visions for an improved mobile app were more or less identical. The conversation about how Thunderbird on desktop and K-9 Mail on Android could better work together had been going on since 2018. I’m very excited to announce that K-9 Mail is now part of the Thunderbird family 🎉

As you may have guessed from the title of this post, the Thunderbird project came to the same conclusion. Some of you have mentioned that it might have been a better strategy to support one of the existing open source email clients on Android rather than creating a new one. A few weeks ago you might have read that the Thunderbird project is working on a mobile email client.
