macro.pop3s

sharewall is very good

#
# Shorewall version 4 - POP3S Macro
#
# /usr/share/shorewall/macro.POP3S
#
#	This macro handles encrypted POP3 traffic.  For plaintext POP3,
#	see macro.POP3.
#
###############################################################################
#ACTION	SOURCE	DEST	PROTO	DEST	SOURCE	RATE	USER/
#				PORT(S)	PORT(S)	LIMIT	GROUP
PARAM	-	-	tcp	995	# Secure POP3
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE