Malaysia Biggest Internet provider recently announce that they will block port 25(SMTP) due to a lot of spam mail. (what a stupid provider).
i'm using ASA5510, i plan to create 2 rule to solve this issues.
1) create a PAT rule for outside 210.x.x.x:26 map to DMZ 172.x.x.x:25
2) create a PAT rule for inside 192.x.x.x:26 map to DMZ 172.x.x.x:25
3) change user smtp from 25 to 26.
while i will remain unchange for the mail server and email security.
The problem now is i using the ASDM 6.0 to configure, but i found the rules abit weird when do it through GUI.
can anyone of you help me to phrase this into command.
