K-9 Mail Reviews & Product Details

K9 is by far the best email client I've found for Android. I'm glad for its open-source nature as it helps to be secure in the knowledge that my email is not being listened-in-on, as well as other more advanced features such as E2EE via PGP encryption. Review collected by and hosted on G2.com.

K9 color schemes can affect the readability of email. For example, if you set emails to be read on a dark background, some text may also be set to a dark color and not be changed by K9. It would be nice if K9 could change the text color so it had more contrast no matter what the email specified. Review collected by and hosted on G2.com.

It's simple to use and it has a lot of options to configure your emails. Review collected by and hosted on G2.com.

User interface should be a little more modern or clean. Review collected by and hosted on G2.com.

One of the few email clients POP and IMAP, for Androida. In my opinion, the most adequate. Review collected by and hosted on G2.com.

Not very convenient to use. The interface is more convenient for the program Agua Mile. I would like the developer to listen to the wishes of users. Review collected by and hosted on G2.com.

Ease of use and the ability to merge all emails in one place Review collected by and hosted on G2.com.

There is nothing wrong with the application Review collected by and hosted on G2.com.

K9mail handles multiple accounts easily, notifications are trivial to set up, and of course the entire app is open source. It is updated fairly frequently- every month or two, usually. There are no major features which are absent, and it can be used with any mail server which supports IMAP or POP. It has built-in support for PGP encryption as well, using an app like OpenKeychain. Review collected by and hosted on G2.com.

The search function of the app could definitely use some work- if there were a way to more easily search the remote server for old emails, that would be useful. But this can be worked around by starring emails I think I'll need later for ease of search. Review collected by and hosted on G2.com.

The layout is clean and simple to use. It allows me to keep up to date with my work emails while on the go. Review collected by and hosted on G2.com.

I don't seem to be able to import all of my folders. I have sub-folders within my Inbox, but they don't appear on the app (while other exchange apps will show everything). Review collected by and hosted on G2.com.

I first downloaded K-9 Mail when my Android's pre-installed e-mail client wouldn't work, and have been using it for everything except my personal G-mail ever since. The app is simple with very little in the way of frills, and it just works. Review collected by and hosted on G2.com.

The biggest annoyance is trying to search for e-mails that have since been deleted locally. Currently, only e-mails that are on the device are searchable, so if you want to search beyond the 50 or so still stored locally, you have do download past e-mails, 50 at a time, which then show up as unread. If there was a way for the app to search the server and only download e-mails matching he search criteria, the search function would be much more useful. Review collected by and hosted on G2.com.

Free, supports multiple inboxes and IMAP and POP3 Review collected by and hosted on G2.com.

Old look and feel (GUI), need to manually purge and compact mailboxes Review collected by and hosted on G2.com.

It was fast and accurate. It felt as if it retrieved my mail before my phone would. Review collected by and hosted on G2.com.

There was some issues like compatibility using it with a galaxy note 4. It did not like cooperating on my phone with my other programs. Felt like I was constantly getting doubles of emails and when I tried to delete it on K9 it wouldn't transfer over to my mailbox on other devices. Review collected by and hosted on G2.com.

Open source client which is very efficient and able to handle large volumes. Review collected by and hosted on G2.com.

Not much to dislike. Only thing concerning is security of the software visavis Android security issues. Review collected by and hosted on G2.com.