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 https://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 https://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: http://bit.ly/new-k9

(People sometimes call K-9: K9 K9 Mail K-9 Email K9 Email K9 E-Mail k9mail or k9email.)