I need a confirmation: I have a postnuke site on my web server that I need to be able to send mail from. The web server's already published in ISA and the site's accessible externally. I've installed the SMTP component on the web server and I configured it to use its internal IP. I've also created a Protocol definition with the following settings: Filter Type Custom Filter IP Protocol: TCP Direction: Both Local Port: All ports Remote Port: Fixed Remote Port Number: 25 Local Computer: external IP of ISA server Remote Computer: Internal IP of web server I have SMTP configured to relay for my internal exchange server and need to know how do I configure or publish this SMTP server in ISA? I have my external zone files pointing to mail.mydomain.com which is the same static IP that points to one of my other sites. Sorry for the confusion but any responses are appreciated. Thanks