<ahref="https://play.google.com/store/apps/details?id=net.thunderbird.android&referrer=utm_campaign%3Dandroid_metadata%26utm_medium%3Dweb%26utm_source%3Dgithub.com%26utm_content%3Dbadge"target="_blank"><imgsrc="./docs/assets/get-it-on-play.png"alt="Get it on Google Play"height="28"></a>
<ahref="https://f-droid.org/packages/net.thunderbird.android"><imgsrc="./docs/assets/get-it-on-fdroid.png"alt="Get it on F-Droid"height="28"></a>
Mail is forked from [k9 Mail/Thunderbird](https://github.com/thunderbird/thunderbird-android)
Thunderbird for Android is a powerful, privacy-focused email app. Effortlessly manage multiple email accounts from one app, with a Unified Inbox option for maximum productivity. Built on open-source technology and supported by a dedicated team of developers alongside a global community of volunteers, Thunderbird never treats your private data as a product.
## Authors
Thunderbird for Android is based on K-9 Mail, which comes with a rich history of success and functionality in open source email.
Thunderbird for Android can be downloaded from a couple of sources:
Check out the [Release Notes](https://gitlab.e.foundation/e/apps/Mail/-/releases) to find out what changed
in each version of Mail.
- Thunderbird on [Google Play](https://play.google.com/store/apps/details?id=net.thunderbird.android&referrer=utm_campaign%3Dandroid_metadata%26utm_medium%3Dweb%26utm_source%3Dgithub.com%26utm_content%3Dlink) or [F-Droid](https://f-droid.org/packages/net.thunderbird.android)
- Thunderbird Beta on [Google Play](https://play.google.com/store/apps/details?id=net.thunderbird.android.beta&referrer=utm_campaign%3Dandroid_metadata%26utm_medium%3Dweb%26utm_source%3Dgithub.com%26utm_content%3Dlink) or [F-Droid](https://f-droid.org/packages/net.thunderbird.android.beta)
By using Thunderbird for Android Beta, you have early access to current development and are able to try new features earlier.
Check out the [Release Notes](https://github.com/thunderbird/thunderbird-android/releases) to find out what changed in each version of Thunderbird for Android.
## Need Help? Found a bug? Have an idea? Want to chat?
If the app is not behaving like it should, or you are not sure if you've encountered a bug:
- Check out our [knowledge base and frequently asked questions](https://support.mozilla.org/products/thunderbird-android)
- Ask a question on our [support forum](https://support.mozilla.org/en-US/questions/new/thunderbird-android)
If you are certain you've identified a bug in Thunderbird for Android and would like to help fix it:
- File an issue on [our GitHub issue tracker](https://github.com/thunderbird/thunderbird-android/issues)
If you have an idea how to improve Thunderbird for Android:
- Tell us about and vote on your feature ideas on [connect.mozilla.org](https://connect.mozilla.org/t5/ideas/idb-p/ideas/label-name/thunderbird%20android).
- Join the discussion about the latest changes in the [Thunderbird Android Beta Topicbox](https://thunderbird.topicbox.com/groups/android-beta).
The Thunderbird Community uses Matrix to communicate:
- General chat about Thunderbird for Android and K-9 Mail: [#tb-android:mozilla.org](https://matrix.to/#/#tb-android:mozilla.org)
- Development and other ways to contribute: [#tb-android-dev:mozilla.org](https://matrix.to/#/#tb-android-dev:mozilla.org)
- Reach the broader Thunderbird Community in the [community space](https://matrix.to/#/#thunderbird-community:mozilla.org)
## Contributing
We welcome contributions from everyone.
- Development: Have you done a little bit of Kotlin? The [CONTRIBUTING](docs/CONTRIBUTING.md) guide will help you get started
- Translations: Do you speak a language aside from English? [Translating is easy](https://hosted.weblate.org/projects/tb-android/) and just takes a few minutes for your first success.
- We have [a number of other contribution opportunities](https://blog.thunderbird.net/2024/09/contribute-to-thunderbird-for-android/) available.
- Thunderbird is supported solely by financial contributions from users like you.[Make a financial contribution today](https://www.thunderbird.net/donate/mobile/?form=tfa)!
### Architecture Decision Records (ADR)
We use [Architecture Decision Records](https://adr.github.io/) to document the architectural decisions made in the
development of Thunderbird for Android. You can find them in the [`docs/architecture/adr`](docs/architecture/adr) directory.
For more information about our ADRs, please see the [ADRs README](docs/architecture/adr/README.md).
We encourage team members and contributors to read through our ADRs to understand the architectural decisions that
have shaped this project so far. Feel free to propose new ADRs or suggest modifications to existing ones as needed.
## Security
The code in this repository was undergoing an extensive security audit in collaboration with the Open Source Technology
Improvement Fund ([OSTIF](https://ostif.org/)) and [7ASecurity](https://7asecurity.com/) in the first half of 2023. For
You can report a security vulnerability [through the respective issues form](https://github.com/thunderbird/thunderbird-android/security/advisories/new).
## K-9 Mail
Thunderbird for Android is continuing the precious work the K-9 Dog Walkers have started. If you'd like to try K-9 Mail as well, you can find it at:
-[K-9 Mail on Google Play](https://play.google.com/store/apps/details?id=com.fsck.k9&utm_source=thunderbird-android-github&utm_campaign=download-section)
-[K-9 Mail on F-Droid](https://f-droid.org/repository/browse/?fdid=com.fsck.k9)
