Supporting Messaging Clients

Configure an SMTP Virtual Server

There are two identifying features for an SMTP virtual server: the display name and the IP address/TCP port combination. Setup assigns a display name for the default SMTP virtual server. You can keep the name (Default SMTP Virtual Server) or change it. You can also select the IP address that will be associated with this SMTP virtual server.

To identify an SMTP virtual server:

  1. Start System Manager
    On the Start menu, point to Programs, point to Microsoft Exchange, and then click System Manager.
  2. Navigate to the SMTP virtual server.
    1. Servers
    2. Server
    3. Protocols
    4. SMTP
    5. SMTP virtual servers
    6. SMTP virtual server
  3. Right-click the virtual server, click Rename, and then type in the new name.
  4. Right-click the SMTP virtual server again, and then click Properties.
  5. On the General tab, use the IP address drop-down menu to select an IP address for the virtual server. The SMTP virtual server can respond to connection requests for all IP addresses configured on the computer.
  6. To identify the TCP port associated with each IP address configured for the virtual server, in Advanced, click Add or Edit.
  7. Port 25 is the SMTP standard TCP port and is recommended. More than one virtual server can use Port 25, provided they are associated with different IP addresses. The IP address/TCP port combinations must be unique on all virtual servers for clients to connect successfully.
  8. To configure new IP address/TCP port combinations or edit existing ones, in Identification, select an IP address from the drop-down menu, and type in a TCP port number to associate with it.

Tip   When you change an SMTP virtual server's configuration, you may want to use the Pause command. Pausing a virtual server prevents new client connections but enables Exchange to continue processing existing client connections and delivering queued messages.

Any time you make changes to a virtual server, you may need to allow a few minutes for your changes to take effect. The metabase update service needs time to replicate your changes.

Related Topics

Enable Message Filtering on a Virtual Server