K-9 Mail

Mozilla Thunderbird

About this app

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 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.

Ratings and reviews

Great app, nice and fast interface. I don't understand why their are so any bad commentaries recently saying this is "abandonnedware". The app works great for me, no sync problem. The interface looks good enough for me, not outdated at all and it is very responsive. It lacks a few options like a delay before the email is actually sent, or automated support for calendar invites but it is acceptable.

Generally good, but there is a bug. When I forwarded an email containing an attachment, a message was displayed saying "This attachment cannot be forwarded because it contains...". It disappeared after a couple of seconds so it was easy to miss, and there was no obvious way of displaying the full message so the content was meaningless. The app then allowed me to forward the message, without the attachment, and without my knowledge or consent.

A really nice user experience. Snappy, fast. Messages stream-in/load quickly. Easy integration & account imports. Moving emails to folders has fuzzy text search!! (I have a lot of folders). Tons of setting & per-account customization options (very flexible). End-to-end encryption support. Wow, glad I tried this!

What's new

- Ask for permission to schedule alarms before allowing to enable Push on Android 12+
- Updated translations