[pop3] title=POP3 description=Post Office Protocol ports=110/tcp categories=Network;Services; reference=[http://en.wikipedia.org/wiki/Pop3 - Wikipedia] [POP3S] title=POP3S description=Secure mail server categories=Network;Services; ports=995/tcp [imap] title=IMAP description=Internet Message Access Protocol ports=143/tcp categories=Network;Services; reference=[http://en.wikipedia.org/wiki/Imap - Wikipedia] [IMAPS] title=IMAPS description=Secure mail server categories=Network;Services; ports=993/tcp [smtp] title=SMTP description=Simple Mail Transfer Protocol ports=25/tcp categories=Network;Services; reference=[http://en.wikipedia.org/wiki/Smtp - Wikipedia]