Create the SMTP Server Publishing Rule
You can create an SMTP Server Publishing Rule to provide external users and servers access to the Microsoft Exchange SMTP service. In general, you will prefer to use the ISA Server 2004 firewall as a secure SMTP filtering relay to prevent external users and servers from directly connecting to the Exchange Server. The Server Publishing Rule discussed in the following walkthrough is best used to provide external SMTP servers access to the Exchange Server so they can send mail to
Perform the following steps to create the SMTP Server Publishing Rule:
10.Open the Microsoft Internet Security and Acceleration Server 2004 management console, and expand the server name in the left pane of the console. Click on the Firewall Policy node.
11.Right click the Firewall Policy node and point to New. Click Server Publishing Rule.
12.On the Welcome to the New Server Publishing Rule Wizard page, enter the name for the rule in the Server publishing rule name text box. In this example, we will name the rule SMTP Server. Click Next.
13.On the Select Server page, enter the IP address of the Exchange Server on the Internal network. In our current example, the IP address is 10.0.0.2. Enter 10.0.0.2 into the text box. Click Next.
14.On the Select Protocol page, select the SMTP Server protocol from the Selected protocol list. Click Next.
15.On the IP Addresses page, put a checkmark in the External check box and click the Address button.
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