No-frills, easy to use, easy to maintain Email client for Android based on the JSON Meta Application Protocol (JMAP). https://Ltt.rs
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Daniel Gultsch c95b096662
remove foreground service
The F-Droid flavor will support UnifiedPush for the next release.

This gives users the choice between FCM, UnifiedPush or regular polling which should be enough choices to make the foreground service obsolete.
5 months ago
.github Upload debug APKs only 2 years ago
app remove foreground service 5 months ago
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gradle/wrapper bump various libraries and agp 7 months ago
.gitignore add push.xml (contains push server url) 2 years ago
LICENSE specify license to be Apache License 2.0 4 years ago
README.md remove fastmail from readme 7 months ago
build.gradle revert desugar library. 1.2.x leads to crashes 7 months ago
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README.md

Ltt.rs for Android

Apache 2.0 License Build Status Codacy Badge Weblate project translated Liberapay patrons GitHub Sponsors

Proof of concept e-mail (JMAP) client (pronounced "Letters"). Makes heavy use of Android Jetpack to be more maintainable than some of the other Android e-mail clients.

Android screenshot

If the above screenshots dont do enough to convince you, you can watch this short video on YouTube.

Features, and design considerations:

  • Heavily cached, but not fully offline capable. Ltt.rs makes use of JMAPs great caching capabilities. However, marking a thread as read does round-trip to the server to update things such as read count. The action itself wont get lost even if performed offline.
  • Account setup and done. Settings invite feature creep and its friend unmaintainability.
  • Minimal dependencies. Third party libraries are often of poor quality, and end up unmaintained. Only widely known, highly tested libraries from reputable vendors.
  • Native Autocrypt support.
  • Based on jmap-mua, a headless e-mail client, or a library that handles everything an e-mail client would, aside from data storage and UI. There is also lttrs-cli, which uses the same library.
  • Looks to Gmail for inspiration in cases of uncertainty.

Try it

You can download Ltt.rs either from F-Droid, or for a small fee from Google Play.

If you want to use F-Droid you can also use our F-Droid repository instead of the official one:

https://ltt.rs/fdroid/repo?fingerprint=9C2E57C85C279E5E1A427F6E87927FC1E2278F62D61D7FCEFDE9346E568CCF86

All three versions are signed with the same key, so it is possible to switch between them.

Attention: You need a JMAP capable e-mail server to use Ltt.rs

As of October 2022, the main options are:

See also: jmap.io/software.html

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