K-9 Mail



    K-9 Mail's review

    Published: 2015-11-27, by .

    Providing a desktop-like experience, K-9 Mail supports most e-mail types

    • Clean and intuitive UI
    • Advanced e-mail settings
    • Issues with push notifications

    "A desktop-like e-mail client"


    K-9 Mail, from K-9 Dog Walkers, is an open-source application that allows you to sync your favorite e-mail right to the app. Supporting IMAP, POP3, and even Exchange 2003/2007, K-9 Mail provides tablet or mobile users with a desktop-like experience, allowing you to organize all of your accounts in one place, folder syncing, flagging, signatures, and more. If you happen to be an independent developer, K-9 Dog Walkers also allow you to join the app project in order to improve functionality.


    K-9 Mail offers a clean and intuitive interface that makes e-mail syncing a breeze. This app also provides advanced settings not found in other top e-mail apps like Gmail. Developers also respond fairly quickly with any issue you’re having with this app.


    K-9 Mail is not without its faults; if you’ve read an incoming mail through another app, K-9 Mail marks it as read. Also, this app may not provide instant push notifications when a new e-mail has been received.

    Tags: k9 email , k9 , k9 mail , k-9 mail , k9 mail screenshots , mail , k9 mail review , k9mail , k9 mail html

    Daniel Adrian Sanchez

    by Daniel Adrian Sanchez

    Nov 27, 2015

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    Users review

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    Users comments

    Matt Fish

    by Matt Fish

    Aug 18, 2017  |  "Great"

    Really would rate 4.5 stars. 5 if it had capability to block emails from certain senders.

    Joerg Steegmueller

    by Joerg Steegmueller

    Aug 15, 2017  |  "OK"

    K9 was one the best mail app but Android Doze in Android 7 made it unfortunately unusable. Polling and push mails both don't work anymore even if you exclude the app from Doze. Google overdose the battery saving and K9 got killed by it. :-(

    john stewart

    by john stewart

    Aug 14, 2017  |  "Poor"

    New version fails to send messages I have to keep trying until it finally sends by repeatedly resending from outbox sending function has a bug in it serious bug advised never to get new versions of this app because they add new bugs back

    Joe Loucka

    by Joe Loucka

    Aug 12, 2017  |  "Good"

    Still have sync issues since going to Android 7. Worked great before Now l miss email because I have to manually sync. SUCKS

    Kiki Amelia

    by Kiki Amelia

    Aug 10, 2017  |  "Awesome"

    Use very low data and secure

    A Google user

    by A Google user

    Aug 09, 2017  |  "Good"

    Lately it doesn't check for messages in the background. Or even when it will go out of background mode after a longer period...