K-9 Mail
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K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.
+4
Cost / License
- Free
- Open Source (Apache-2.0)
Application type
Platforms
- Android
- Android Tablet
- F-Droid
- OpenAPK
Features
Highlights All activities
K-9 Mail News & Activities
Recent News
- Paul published news article about Thunderbird
- Paul published news article about Thunderbird
- Paul published news article about K-9 Mail
Recent activities
The ultimate F-Droid setup (300+ Apps)
WHAT IS F-DROID ?
F-Droid is an awesome app repository for FOSS (Free & Open Source Software) android apps. From productivity apps to games, f-droid has (almost) everything you need.
Hope you will discover useful FOSS apps to free your phone from Big Tech^^
REPOSITORIES :
This list includes apps from the official f-droid repo but also from IzzyOnDroid and some customs repositories which will be always linked so you can add them easily.
CATEGORIES :
F-Droid clients
Utilities
Social & Communication / 8 subcategories
Health / 7 subcategories
Customization / 3 subcategories
Gaming / 3 subcategories
Internet / 6 subcategories
Productivity / 15 subcategories
Privacy / 5 subcategories
Security / 4 subcategories
Media apps / 10 subcategories
If you care about privacy check :
Privacy focused OS for everyone
My privacy and user friendly setup
For more FOSS Android apps check : Beautiful Open Source Apps for Android
DISCLAIMERS :
Adding custom repo might not be as secure as the official one so I'm not responsable if you encounter any problems with them ! I encourage you to do your own research about it !
Also while open source is great for privacy and security it is not perfect. So keep that in mind before downloading any apps.
Most apps that I've listed are privacy friendly but some might be not be perfectly private and secure. I again encourage you to do your own research about them.
I am not a privacy and security expert. I'm also don't consider myself as a developper so I do not have any technical knowledge and so I didn't look into any source code of any apps in this list !
English is not my mother tongue ^^'
Interesting and open-source Android apps
A list of interesting and open source Android apps.
Without Microsoft, Google, Facebook, Apple & the rest Big Tech
(in progress)
The higher the level - the lower the level of comfort and stability, but higher the level of freedom and ethical, respectful treatment of you.
Don't choose the highest level everywhere at once (you can go crazy that way), choose what you need to accomplish your tasks and move slowly to the next level (if you understand what you really need it)
Developed by
K-9 Dog WalkersLicensing
Open Source (Apache-2.0) and Free product.Rating
Average rating of 4.4Alternatives
49 alternatives listedNews
11 news article related to K-9 MailBadge
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AlternativeTo Categories
Office & Productivity, Security & Privacy, Social & CommunicationsGitHub repository
- 14,107 Stars
- 2,844 Forks
- 1079 Open Issues
- Updated
Comments and Reviews
Best email client for Android
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.
Subfolders work fine for me over IMAP (you need to tell it to rebuild the folder tree once a new one is added). What do you mean by "files"? Are you referring to the storage type? (I think it was one file per mail / one .mbox file with all mail.)
My preferred email application for years now. It is reliable still gets recent updates
Open source, free and very light on battery
A great email client which just does what it's supposed to.
Good to know: The old UI is far superior in terms of productivity & acessibility - and there's lots of debate bc the devs have different opinions about the UI layout and ignore the users wishes (toolbar on top is the main issue).
If you want to try or use the old UI, the version is 5.600 (fully functional & stable; afaik the new versions have nothing notable v. 5.600 hasnt - maybe webDAV - support is new).
The screenshots display the old & new UI.
It's the best open source Android email client but it's still way worse than the Gmail app.
The search is garbage, you can't edit it after sending the query.
There is no "Always show images from this sender" option.
Nice interface and easy to configure. Animations make the program feels slow so I disabled them. I prefer it over Fairemail