How to Configure the Inbound Port and IP Addresses on the SMTP Virtual Server

The inbound port is the port where the SMTP virtual server listens for incoming communications; the IP address is the address to which incoming requests are sent. By default, the default SMTP virtual server uses port 25 and all available IP addresses to listen for incoming requests.

Before You Begin

Before You Begin

Before you perform the procedure in this topic, read Connecting Exchange to the Internet.

The following permissions are required to perform this procedure:

• Member of the local administrators group and a member of a group that has had the Exchange Administrators role applied at the administrative group level

Procedure

To configure the inbound port and IP addresses on the SMTP virtual server

1. Right-click Default SMTP Virtual Server, and then click Properties.

2. In Default SMTP Virtual Server Properties, click the General tab.

   The General tab in the Default SMTP Virtual Server Properties dialog box

   

3. Under Default SMTP Virtual Server, verify the following settings:

   • IP address   The default setting is (All Unassigned). You should not change this setting unless you want to configure multiple SMTP virtual servers. (This is the IP address that is used for incoming connections.)

   • If you have either multiple network interface cards (NICs) or multiple IP addresses that are assigned to a single NIC for this SMTP virtual server to listen on, and you want to select individual IP addresses, click Advanced, and then specify ports other than the default.

   Note

   Use the Advanced option carefully. Other servers (on the Internet, for example) expect to communicate with your server on the default TCP port 25.