Do you support IMAP and How do I configure IMAP?

Email > Email program configuration
Yes Smarterasp.net supports IMAP. To configure IMAP, please follow our instructions in
http://www.smarterasp.net/support/KB/c30/email-program-configuration.aspx

Be sure to select IMAP setting instead of POP3 setting.  And IMAP port is 143 instead of POP3 port is 110.