hi
i have a cisco pix firewall
and i only have a mail server(MS exchange) on nt server
and alot of workstations on nt workstation
i made a nating for the pcs to work in virtual ips
and only the mail server take a real ip(the traffic came to real and the
firewall pass it to the virtual)
and i only want the out side traffic came to mail ports only
so i opened the 25 tcp port and close any comming other ports
but the servr stop to recieve mails
wahen i allow all traffic on except icmp it works
is there any other ports should be open to allow the mail server to =
recieve mails
