[IMail Forum] Ports to open in FW for IMAP

[Jack Taugher]

http://www.iana.org/assignments/port-numbers provides the following information for IMAP protocol ports:   imap            143/tcp    Internet Message Access Protocol imap            143/udp    Internet Message Access Protocol imap3           220/tcp    Interactive Mail Access Protocol v3 imap3           220/udp    Interactive Mail Access Protocol v3   Which port combinations need to be opened on a Firewall to allow for IMail IMAP access?