K-9 Mail

Screenshots

About K-9 Mail

K-9 Mail is an open source email client that works with basically every email provider.

Features

• supports multiple accounts
• Unified Inbox
• privacy-friendly (no tracking whatsoever, only connects to your email provider)
• automatic background synchronization or push notifications
• local and server-side search
• OpenPGP email encryption (PGP/MIME)

Install the app "OpenKeychain: Easy PGP" to encrypt/decrypt your emails using OpenPGP.

Support

If you're having trouble with K-9 Mail, ask for help in our support forum at https://forum.k9mail.app

Want to help?

K-9 Mail is now part of the Thunderbird family and remains a community developed project. If you're interested in helping to improve the app, please join us! You can find our bug tracker, source code, and wiki at https://github.com/thunderbird/thunderbird-android

We're always happy to welcome new developers, designers, documenters, translators, bug triagers and friends.

Information

Frequently Asked Questions