Thunderbird

Thunderbird is a free, open-source email client made by the Mozilla Corporation, available on multiple OS’s including PC, Mac, and Linux.
Setup of email is quite easy with Thunderbird.
 
Image009
Launch Thunderbird from the Start Menu, and it should ask you to enter your Name, email address, and password. Do so and click ‘Continue’.
Image010
It will now automatically retrieve settings from our server to use IMAP, authenticate on sending, and use secure connections. Click ‘Done’.

 
Image011
Thunderbird is setup. You can setup advanced features or click ‘Finish’ and start using it immediately.