• Fixed display bug when opening Unified Inbox from a launcher shortcut
  • Fixed functionality to download and save linked images on Android 10+
  • Moved 'show headers' functionality to a separate screen
  • Added save button to 'edit identity' screen
  • Added translation: Malayalam

K-9 Mail is an open source email client with support for multiple accounts, search, IMAP push email, multi-folder sync, flagging, filing, signatures, BCC-self, PGP/MIME & more!

K-9 supports IMAP, POP3 and Exchange 2003/2007 (with WebDAV).

Install the app "OpenKeychain: Easy PGP" to encrypt/decrypt your emails using OpenPGP.

K-9 is a community developed project. If you're interested in helping to make the most popular open source email client on Android even better, please join us! You can find our bug tracker, source code, mailing list and wiki at github.com/k9mail/k-9
We're always happy to welcome new developers, designers, documenters, bug triagers and friends.

If you're having trouble with K-9, please report a bug at github.com/k9mail/k-9 rather than just leaving a one-star review. We don't mind you telling the world that you're frustrated, but if you use our bug tracker, we have a better chance of fixing whatever's giving you a hard time.

You can find K-9's release notes at: bit.ly/new-k9

See available downloads
A more recent upload may be available below!
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This release may come in several variants. Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
5.731 APK
27031
February 23, 2021
noarch
Android 5.0+
nodpi
All Releases
K-9 Mail 6.100 beta
June 16, 2022

Version:6.100

Uploaded:June 16, 2022 at 5:38AM UTC

File size:7.72 MB

Downloads:97

K-9 Mail 6.000
April 18, 2022

Version:6.000

Uploaded:April 18, 2022 at 7:30PM UTC

File size:7.42 MB

Downloads:263

K-9 Mail 5.916 beta
April 12, 2022

Version:5.916

Uploaded:April 12, 2022 at 1:13AM UTC

File size:7.42 MB

Downloads:40

K-9 Mail 5.915 beta
April 6, 2022

Version:5.915

Uploaded:April 6, 2022 at 10:53PM UTC

File size:7.42 MB

Downloads:34

K-9 Mail 5.914 beta
March 24, 2022

Version:5.914

Uploaded:March 24, 2022 at 10:59PM UTC

File size:7.42 MB

Downloads:58

K-9 Mail 5.913 beta
March 11, 2022

Version:5.913

Uploaded:March 11, 2022 at 7:36PM UTC

File size:7.41 MB

Downloads:72

K-9 Mail 5.912 beta
February 23, 2022

Version:5.912

Uploaded:February 23, 2022 at 12:56AM UTC

File size:7.1 MB

Downloads:55

K-9 Mail 5.911 beta
February 12, 2022

Version:5.911

Uploaded:February 12, 2022 at 12:21AM UTC

File size:7.1 MB

Downloads:68

K-9 Mail 5.807
January 26, 2022

Version:5.807

Uploaded:January 26, 2022 at 8:46PM UTC

File size:7.14 MB

Downloads:231

K-9 Mail 5.910 beta
January 25, 2022

Version:5.910

Uploaded:January 25, 2022 at 8:59PM UTC

File size:7.11 MB

Downloads:52

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