AI summary
K-9 Mail is an open source email client with support for multiple accounts, unified inbox, and OpenPGP encryption. It prioritizes privacy with no tracking and only connects to your email provider. The latest version fixes crashes with long messages and memory issues.
Generated by AI. May contain inaccuracies.
Screenshots
About this app
K-9 Mail is an open source email client that can be used with basically all mail service providers.
characteristics
* Support multiple accounts * unified inbox * Privacy friendly (no tracking, only connected to your email service provider) * Automatic background synchronization or push notifications * Local and server-side search * OpenPGP Email Encryption (PGP/MIME)
Install the application OpenKeychain: Easy PGP and use OpenPGP to encrypt/decrypt email.
support
If you are experiencing problems using K-9 Mail, please seek help on our support forum.
Want to help?
K-9 Mail is a community development project. If you are interested in helping improve apps, please join us! You can find our error tracker, source code and wiki here at https://github.com/thunderbird/thunderbird-android. We always welcome new developers, designers, documentarians, translators, testers and friends to join us.
What's new
Fixed: ・Application could crash when rendering long messages (#11218) ・Application could crash due to memory exhaustion (#11216)
About this version
- Version
- 20.1 (39040)
- Size
- 10.11 MB
- Requires Android
- 6.0
- Target SDK
- 23
- Architecture
- x86, x86_64, arm64-v8a, armeabi-v7a
- Downloads
- 35
- Updated
- Jul 7, 2026
- Package
- com.fsck.k9
Ratings & reviews
- 50
- 40
- 30
- 20
- 10