deny ports on a cisco 1700 router?

[picnmix]

Hi
I want to deny imap traffic going down my leased line what command do I need to put on the routers?


router a router b
inside address outside address outside address inside address
172.16.1.1 192.168.2.5------192.168.2.6 192.168.3.6
^
|
leased line

 

[avilov]

The default port for IMAP is 143
and the default port for IMAP over SSL is 993

blocking these two ports you block most of IMAP traffic