We offer IMAP support on all of our mail servers. The setup for IMAP is very similar to that of POP3, except you would choose IMAP as the server type rather than POP3. Keep in mind that when using IMAP, all of your mail is stored on the server until you delete it, so delete any unneeded messages to avoid using all of your allotted disk space.
Incoming server port number:
IMAP = 143 (TLS is supported)
Outgoing Server Port:
25 - (TLS is supported) (please try one of the following if 25 doesn't work - 26 or 587) or 465 - SSL Support