creating the smtp filter:
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expand extantion \application filters|right click application filter|properties|
on smtp command tab|click VRFY|edit|click to clear the enable an smtp command|
ok|on attachments tab|add|in the mail attachments rule click attachment extantion
.exe. at the action list click hold message|ok|
in the general tab select enable this filter check box,save settings| ok
at isa management|policy elements|right click destination set|new set|call it
smart host|add|ip address |ok.
create a client set:
u do not have to complete these steps if u want to permit all computers to have
outgoing access.
under policy elements|right click client address sets| new set|call it exchange
server|add the ip address of the server at the from and to box|ok.
create site and content rule:
at access policy right click site and content rule|new rule|name permit
outgoing|next|allow access based on destination|all destinations|finish.
never change the servers ip for using nat-it makes big problems and not secured
use secure mail server wizard:
isa|expand server and arrays|access policy|ip packet filters|the incoming and
outgoing smtp packet filters r listed in the: available packet filters list.
than send mail from a client computer outside the domain).
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