K-9 Mail icon

K-9 Mail

Mozilla Thunderbird

3.2

store rating

5,000,000+

downloads

Free

+ in-app

With this email client, you can manage multiple accounts, read messages, and use encryption features. Includes support for OpenPGP encryption, background synchronization, and a unified inbox.

AppRecs review analysis

AppRecs rating 3.0. Trustworthiness 88 out of 100. Review manipulation risk 19 out of 100. Based on a review sample analyzed.

★★★☆☆

3.0

AppRecs Rating

Ratings breakdown

5 star

36%

4 star

13%

3 star

11%

2 star

11%

1 star

29%

What to know

Low review manipulation risk

19% review manipulation risk

Credible reviews

88% trustworthiness score from analyzed reviews

High negative review ratio

40% of sampled ratings are 1–2 stars

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.
K-9 Mail Screenshots
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