* [Petmail](https://github.com/warner/petmail).
* [Pixelated](https://pixelated-project.org).
* [Whiteout](https://github.com/whiteout-io/mail-html5).
+ * [N1](https://github.com/nylas/N1).
* Migration:
* [Gmvault](http://gmvault.org).
References
----------
-* [Opt out of PRISM, the NSA’s global data surveillance program - PRISM BREAK](http://prism-break.org/).
+* [Servers - Platforms - PRISM Break](https://prism-break.org/en/categories/servers/).
* [Indie Web Projects](http://indiewebcamp.com/projects).
* [Alternative Internet](https://github.com/rossjones/alternative-internet).
* [Overview of projects working on next-generation secure email](https://github.com/OpenTechFund/secure-email).