pop2		109/tcp		Post Office Protocol - Version 2
pop2		109/udp		Post Office Protocol - Version 2
pop3		110/tcp		Post Office Protocol - Version 3
pop3		110/udp		Post Office Protocol - Version 3
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
imaps		993/tcp		imap4 protocol over TLS/SSL
imaps		993/udp		imap4 protocol over TLS/SSL
pop3s		995/tcp		pop3 protocol over TLS/SSL (was spop3)
pop3s		995/udp		pop3 protocol over TLS/SSL (was spop3)

.