About
K-9 Mail is an open source email client that works with basically every email provider. It supports multiple accounts with a unified inbox, automatic background synchronization or push notifications, and both local and server-side search. The app is privacy-friendly with no tracking—it only connects to your email provider. For users who want to encrypt their emails, K-9 Mail supports OpenPGP email encryption (PGP/MIME) when used with OpenKeychain: Easy PGP.
Highlights
- Multiple account support with unified inbox view
- OpenPGP email encryption (PGP/MIME) with OpenKeychain integration
- Automatic background sync and push notifications
- Local and server-side email search
- Privacy-focused with no tracking, connects only to your email provider
Best for
Users who want a privacy-respecting email client supporting multiple accounts across any email provider, and those seeking OpenPGP encryption capabilities for secure email communication.
At a glance
K-9 Mail is available on Android — all free to download.
It is developed by K-9 Dog Walkers.
Screenshots
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