Premium
What's new in K-9 Mail 14.0
- 'Auto-fit messages' setting did not persist
- Edge-to-edge move/copy regressed with 3-button nav
- Swiping message left/right could abort prematurely
- Outlook SMTP failed authentication for some accounts
- Gmail folder prefixes appeared after refreshing folder list
- Quiet time preferences were ignored
- Thunderbird could crash after deleting an account
About K-9 Mail 14.0
K-9 Mail is an open source email client that works with basically every email provider.
Premium
Features
* supports multiple accounts
* Unified Inbox
* privacy-friendly (no tracking whatsoever, only connects to your email provider)
* automatic background synchronization or push notifications
* local and server-side search
* OpenPGP email encryption (PGP/MIME)
Install the app "OpenKeychain: Easy PGP" to encrypt/decrypt your emails using OpenPGP.
Support
If you're having trouble with K-9 Mail, ask for help in our support forum at forum.k9mail.app
Want to help?
K-9 Mail is now part of the Thunderbird family and remains a community developed project. If you're interested in helping to improve the app, please join us! You can find our bug tracker, source code, and wiki at github.com/thunderbird/thunderbird-android
We're always happy to welcome new developers, designers, documenters, translators, bug triagers and friends.
Version:14.0
Uploaded:November 24, 2025 at 3:48AM UTC
File size:12.33 MB
Premium
Version:14.0
Uploaded:December 20, 2025 at 7:58AM UTC
File size:12.93 MB
Downloads:11
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Uploaded:August 27, 2025 at 9:24AM UTC
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Version:11.0
Uploaded:July 16, 2025 at 5:42AM UTC
File size:11.43 MB
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Version:10.1
Uploaded:July 8, 2025 at 3:50AM UTC
File size:10.22 MB
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Version:10.0
Uploaded:May 7, 2025 at 6:45AM UTC
File size:10.22 MB
Downloads:200
Version:9.0
Uploaded:May 7, 2025 at 6:45AM UTC
File size:10.68 MB
Downloads:17
Version:9.0b3
Uploaded:December 16, 2024 at 7:06PM UTC
File size:10.13 MB
Downloads:111
Version:8.2
Uploaded:December 12, 2024 at 2:07PM UTC
File size:10.66 MB
Downloads:207
