
K-9 Mail
Open source Android email client with support for multi-folder sync, keyboard shortcuts, and more.
K-9 Mail Screenshots





K-9 Mail Features
K-9 Mail information
Supported Languages
- English
GitHub repository
- 7,600 Stars
- 2,316 Forks
- 629 Open Issues
- Updated
Comments and Reviews
Tags
- Encryption
- Email Client
- email-signature
- autocrypt
Lists containing K-9 Mail
The ultimate F-Droid setup (250+ Apps) • Into the Cyberverse • Beautiful FOSS Android Apps • Progress & ManagementRecent user activities on K-9 Mail
SaaYliked K-9 Mail
bonkintimeadded K-9 Mail as alternative(s) to Postbox
bonkintimeadded K-9 Mail as alternative(s) to Nextcloud Mail
Easy and reliable open source android email app, have been using this as a daily driver for the last couple of years and have no problems.
Thrilled to see the new version. This is one of the largest tragedies in the FOSS world. Has over 5 million downloads in Play Store alone and many people do not install this from the Play Store.
Tragedy is they have transparent financing / fundraising listed and their goal is only $1000 Euro per week, They cannot even get that. Think about how much big tech makes and all their clients and then think about K9 insisting on remaining FOSS. With how many people use it, if even 4000 of them gave just 1.25 Euro / Per Month, that would hit their funding goal. As is, from the site and GitHub page, looks like team of 4 with 1 guy doing bulk of work, few others rounding out edges, and some others in FOSS community assisting here and there. Go look at their GitHub page and look at what their 1 person has resolved in the past couple months. Fairly sure he could have cushy job at big tech company at this point.
All the negatives are largely due to funding, honestly, I wish they keep it FOSS, but put in like a $3 buy button to show your apprecation and you get a little badge. One other FOSS company, little larger does this. All their stuff is free, you gain no 'pro' features if you donate, but you can easily do it and that is a one time thing, it comes up like a purchase in respective app store (they just release copies without that option in places like F-Droid).
With 6.0 released, can't believe they got something like that done given resources they have, it is great. If you do not know what FOSS project to support, seriously consider K-9 if you are a user, they have insisted on keep it FOSS, lets not lose it because no one donates (which often occurs because people assume others are donating to such a popular app, sometimes FOSS projects that get recognition have hard time funding because everyone assumes the other person is doing it).
Works awesomely, until you need a subfolder in your Inbox (some email hosts insist), which K9 will not see at all. Unlike other apps, it seems K9 can only handle files OR subfolders, but not both.
I've been using
FairEmail for a while on Android, but I always go back to K-9 Mail, because it works like a charm and I really like the UI and the settings available. Best email client for Android available to this day.
Best android mail client out there. Simple and easy to use, although the search feature sometimes lacks accuracy
Works well with Gmail, Yahoo, and Yandex. Plan to use it with Protonmail too. It has the nice feature of disabling all email notifications, just that this setting is per account and not global.
I use it for a long time, the functionality is quite simple and global, just as it should, thanks!