Thunderbird - K-9

: Some users leverage Thunderbird and K-9 Mail as efficient RSS readers, using their filtering and organization capabilities to manage news feeds alongside their emails. Compatibility & Setup Import settings and data into Thunderbird for Android

In mid-2022, , a veteran open-source email client for Android, officially joined the Thunderbird family. This partnership is transforming K-9 Mail into Thunderbird for Android , bringing the power and privacy focus of the desktop client to mobile devices. The Evolution: K-9 Mail to Thunderbird for Android thunderbird k-9

"Thunderbird K-9" is more than a rebranding exercise. It represents the first time in a decade that a major open-source organization has taken mobile email seriously. By merging the bulletproof backend of K-9 Mail with the design sensibilities and ecosystem of Thunderbird, the team has created the only viable alternative to the ad-supported, surveillance-driven duopoly of Google and Microsoft. : Some users leverage Thunderbird and K-9 Mail

Because this is a pro app, you can export your entire configuration (all 10 accounts, signatures, filters) as a JSON file. Go to Settings > Data management > Export settings . This is a lifesaver when switching phones. The Evolution: K-9 Mail to Thunderbird for Android

That all changed in 2022. In a move that shook the email client world, the Thunderbird team announced they were bringing K-9 Mail under the official Thunderbird umbrella. The goal? To rebrand, rebuild, and release —internally code-named "Thunderbird K-9."

. While they currently look and function almost identically, Thunderbird offers better integration for desktop users and faster feature updates Quick Comparison: Thunderbird vs. K-9 Mail