Dear All
I am facing the following below problem on suselinux postfix mail server

I my system I have modify the configuration file /etc/postfix/main.cf and
/etc/postfix/master.cf to run postfix on port 25 and also on port 10025
postfix running successfully. I have also configured "HEADER_CHECKS" directive
on /etc/postfix/main.cf to prevent certain kind of file attachement on outgoing mail
This is also running successfully i have checks for both port 25 and 10025.
But I want that this file attachment prevention will be performed for port
25 only and not for 10025.What are the necessary additional configuration i have to do.
There may be some modification required on main.cf or in master.cf.What would be the modification? Anybody know that.Please help