K-9 Mail is a free email application tool which allows you to connects multiple accounts, IMAP push email and POP3.
In our point of view K-9 Mail is a very useful email tool which works pretty well the best part is that in evolves every day because it is an open source project.
You can easily download K-9 Mail on your Android or iOS smartphone from the links bellow:
How to download and install K-9 Mail for PC and Mac
You can also download and run K-9 Mail on PC and Mac by using a thirty party software such as BlueStacks App Player.
BlueStacks will allow you run K-9 Mail on both Windows and Mac computers.