Good afternnon. A question preceeded by some backrground.
My company (xyz.com) runs Exchange 5.5 sp 4. We require SMTP but not
On the routing tab for the IMS I have selected to Reroute incoming
SMTP mail and entered xyz.com and <inbound> in the routing area.
I am using a custom routing program (imsext.dll) to enable
In order to prevent an open relay, I understand I need to enforce
The desired result is to have all clients within xyz.com access to
send SMTP mail. Inbound mail should only be allowed to pass through if
the recipient is a member of our local system.
Currently I can telnet to our mail server and RCPT to and address
other than xyz.com.
Can someone assist me with the appropriate routing restrictions?