K-9 Mail – Advanced Email for Android

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

K-9 is very old - almost as old as can be, by Android standards. We regained a lot of development momentum in 2016, and want to make 2017 the year where we get up to speed with what's expected of a modern and competitive App. This means material design, but also an optimized user experience and compatibility with more recent Android features.

We are serious about freedom as in free speech, but also about software engineering: We have an open development process, but nothing gets merged without proper code review.

To speed up our development pace even more in 2017, we are looking for contributors who want to join us, gather some Android experience, bolster their street cred (and of course receive that sweet paycheck).

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  • android
  • java


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K-9 Mail 2017 Projects

  • daquexian
    Daquexian's proposal about improving account setup
    My proposal about improving account setup, including my thought and progress on it :)
  • Harikrishnan Rajan
    Improve IMAP-related features
    The aim of this project is to enhance some portions of the application that implement the Internet Message Access Protocol (IMAP). Specifically :...