K-9 Mail
| K-9 Mail | |
|---|---|
| Original author(s) | Jesse Vincent |
| Developer(s) | MZLA Technologies Corporation, Christian Ketterer |
| Initial release | 27 October 2008 |
| Stable release | 8.2
/ 10 December 2024 |
| Repository | |
| Written in | Java, Kotlin |
| Operating system | Android |
| Type | Email application |
| License | Apache License 2.0 |
| Website | k9mail |
K-9 Mail is a free and open source email client for Android. It is designed as an alternative to the stock email clients included with the platform; it supports both POP3 and IMAP protocols and supports IMAP IDLE for real-time notifications. The project is named after the Doctor Who character K9.
For end users, K-9 Mail started to transition towards becoming Thunderbird for Android in October 2024.