Server Settings 

Incoming Server Address (IMAP): 
Port: 143

Incoming Server Address (POP3): 
Port: 110

Outgoing Server Address (SMTP): 
Port: 587

NOTE: Even if you want to use TLS connection for emails, the details remain the same as above.

Make sure authentication is enabled for your outgoing server in your email client.


MX-Records :

Your Servage MX-Records have this syntax (replace with your real domain name): MX 10 MX 20  A  A