Mail server settings:

Incoming Server: mailin.runestone.net
Outgoing Server: mailout.runestone.net

Incoming Server Type: POP3
Outgoing Server Type: SMTP

Incoming Server port: 110
Outgoing Server Port: 25
*You will need to use outgoing port 587 and turn password authentication on if you will be sending email while connected outside of the Runestone service area.