How to Share All Address Spaces in Your Exchange Organization

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Use this procedure to share all address spaces in your Exchange organization.

Before You Begin

Before you perform the procedure in this topic, read Deployment Scenarios for Internet Connectivity.

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 organizational level

Procedure

To share all address spaces in your Exchange organization

  1. Click Start, point to Programs, point to Microsoft Exchange, and then click System Manager.

  2. In the console tree, expand Servers, expand <Server Name>, expand Protocols, and then expand SMTP.

  3. Right-click your SMTP virtual server, and then click Properties.

  4. In the SMTP virtual server's Properties, click the Messages tab.

  5. In the Forward all messages with unresolved recipients to host box, type the IP address, in square brackets ([ ]), or the FQDN of the server that will receive unresolved mail, and then click OK.

  6. Repeat this procedure for the default SMTP virtual server on all Exchange 2003 servers, except for any virtual server that is acting as an inbound gateway for the other system. It is recommended that no mailboxes reside on this server.