K-9 Mail

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

Download

K-9 Mail can be downloaded from a couple of sources:

• Google Play
• F-Droid
• Github Releases

You might also be interested in becoming a tester to get an early look at new versions.

Release Notes

Check out the Release Notes to find out what changed in each version of K-9 Mail.

Need Help?

If the app is not behaving like it should, you might find these resources helpful:

• User Manual
• Frequently Asked Questions
• Support Forum

Translations

Interested in helping to translate K-9 Mail? Contribute here:

• K-9 Mail localization

Contributing

Thank you for contributing! If you're unfamiliar with the code, start by reading the developer documentation

Please fork this repository and contribute back using pull requests.

Any contributions, large or small, major features, bug fixes, unit/integration tests are welcomed and appreciated but will be thoroughly reviewed and discussed. Please make sure you read the Code Style Guidelines.

Communication

Aside from discussing changes in pull requests and issues we use the following communication services:

• Matrix: #k9mail:matrix.org
• IRC: #k9mail on Libera Chat
• Developer mailing list

License

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.