If you have questions about the new version, please join our support forum. For details, check out the changelog entries for the beta versions (5.7xx) leading up to this stable release. The new version also includes a lot of bug fixes and minor changes. Various improvements and bug fixes related to end-to-end encryption (Autocrypt, OpenPGP).However, existing accounts will continue to work for now. You won’t be able to set up new WebDAV accounts.

The support for WebDAV accounts has been deprecated.

This version of K-9 Mail only runs on Android 5.0 and newer.

In 5.800 we’ve made the necessary changes so periodic background sync and Push now work much more reliably. Old versions of K-9 Mail didn’t work too well with these limitations.

Starting with Android 6 the platform introduced a lot of changes to limit what apps can do in the background.

Some of you will love it, some will hate it.

The user interface has been redesigned.

There’s finally a new stable release available: K-9 Mail 5.800 🎉

K9 mail client