3.4
96.9K reviews
5M+
Downloads
Content rating
USK: All ages
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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/k9mail/k-9
We're always happy to welcome new developers, designers, documenters, translators, bug triagers and friends.
Updated on
Nov 28, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.4
96.9K reviews
Ich Ich
December 1, 2022
The new user interface sucks! Everything important is in the top left corner where it is hard to reach with the right thumb! Why is there no folder view that can be reached with the back button? Edit 11/28, and it got even worse today! No more forward / backward buttons. Only swipe actions for mark as read. Swipe actions are horrible user interface design.
20 people found this review helpful
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Felix Krauth
July 28, 2021
The new update provides a more modern looking interface for sure. But the glaring problem is that due to the relocation of the tool bar to the top it has become impossible to use the app with one hand only. This might not sound like much but it is a big deal to me. Very, very inconvenient! I just don't understand. What is the advantage to put it at the top?? Also all my starred mails have become un-starred with the update...I will never find them again :(
35 people found this review helpful
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Cosmo Frame
August 2, 2021
The functionality seems to have decreased a lot since the last update. Now I no longer seem to be able to do anything but delete and 'star' mails from the inbox. Before many options were available, such as moving mails to different folders. Having to actually go into the mail (and then possibly unmarking as read) before moving the mail is absolutely horrible.
14 people found this review helpful
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What's new

- Added swipe actions to the message list screen
- Added support for swiping between messages
- Added a monochromatic app icon for Android 13
- Fixed "K-9 Accounts" shortcuts (please remove existing shortcuts and add them again)
- Fixed error reporting for (old) send failures
- A lot of other bug fixes; see in-app change log
- Added Western Frisian translation and updated others