Get started Bring yourself up to speed with our introductory content.

ISA Server as SMTP filter: Create an SMTP publishing rule

In this segment of the step-by-step guide to using the ISA server as an SMTP filter, Brien Posey discusses how to create an SMTP publishing rule.

Now that ISA Server is up and running, we have to create a couple of publishing rules. The first publishing rule that we have to create is the SMTP publishing rule.

  1. Open the ISA Server management console.

  2. Right click on the Firewall Policy container and select New -> Server Publishing Rule. Windows will launch the Server Publishing Rule Wizard.

  3. Begin by entering a name for the rule. In this case, just call the rule 'SMTP.'

  4. Click Next. You will be prompted to enter the IP address of the server that you are publishing. Enter the IP address you assigned to the SMTP service in Step 2.

  5. Click Next. You will now be prompted to select a protocol. Select SMTP Server from the list of protocols and click Next.

  6. You will see the IP Addresses screen. Select the 'External' checkbox and click Next, followed by Finish. You will be returned to the main ISA Server console.

  7. Select the new rule and click Apply, followed by OK.

    How to use an ISA Server as an SMTP filter

      Install the SMTP service
      Configure the Internet Information Server
      Install ISA Server 2004
     Create an SMTP publishing rule
      Create a DNS publishing rule
      Configure the message screener
      Change your DNS server's MX record

    Brien Posey

    About the author
    Brien M. Posey, MCSE, is a Microsoft Most Valuable Professional for his work with Windows 2000 Server and IIS. Brien has served as the CIO for a nationwide chain of hospitals and was once in charge of IT security for Fort Knox. As a freelance technical writer he has written for Microsoft, TechTarget, CNET, ZDNet, MSD2D, Relevant Technologies and other technology companies.

    This tip originally appeared on

Dig Deeper on Managed network security services

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.