Android代码-k-9

K-9 Mail K-9 Mail is an open-source email client for Android. Download K-9 Mail can be downloaded from a couple of sources: Google Play F-Droid Github Releases Amazon Appstore for Android You might also be interested in becoming a beta tester or an alpha tester to get an early look at new versions. Release Notes Check out the Release Notes to find out what changed in each version of K-9 Mail. Need Help? If the app is not behaving like it should, you might find these resources helpful: User