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Welcome to the K-9 Mail wiki!

K-9 Mail is an open source email client for Android.

Information for K-9 Mail users

• Release Notes for modern versions are listed on GitHub. The ReleaseNotes page covers older versions.
• The user manual contains instructions on how to use the app.

Need help using or setting up K-9?

• Support Forum
• Chat (Matrix)
• Chat (IRC)

Found a bug?

• Learn how to report it

Contributing to K-9 Mail

Pull requests and bug reports are always welcome. You can help translate the app to your language by heading over to Weblate.

• BuildingK9 describes how to build the app.
• There's a user manual. If you know things, please contribute to it.
• GitGuide describes how to set up and use Git and GitHub for K-9 (has some useful information even if you're familiar with GitHub).

If you're having trouble with K-9, have a look at LoggingErrors to learn how to help us help you.

Developers, join us on…

• Matrix: #k9mail:matrix.org