K-9 Mail is one of the most popular free open source e-mail apps for Android devices. You can follow their official account at:

➡️ @k9mail

Their website is at

It's available to download from @fdroidorg, Google Play and Amazon App Store.

(You can also download the app and source from the git at

@k9mail @fdroidorg

There also pEp, a fork of K-9 mail, but includes a zero trust architecture encryption as one unit. Which I use and love.


Sign in to participate in the conversation

This is a brand new server run by the main developers of the project as a spin-off of 🐘 It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!