Address Space Properties

You can define the type and format of addresses used to identify messages sent to another site. Each entry is called an address space and contains only as much of the address as necessary to distinguish messages that should be sent through this connector. You need to specify only the address space options that uniquely identify the route to the site. The X.400 address of the remote site is automatically entered in the Address Space property page when the Site Connector is created.

Getting to the Address Space property page

1. In the Administrator window, choose Connections.
2. Double-click the Site Connector to be modified.
3. Select the Address Space tab.

Defining Address Spaces

Specify only as much of the address information as necessary to distinguish messages that should be routed to the connected site. For example, if you want to route every message with a Simple Mail Transfer Protocol (SMTP) address to the remote site, you should create a new Internet entry with an asterisk (*) in the address field. This matches all messages with a non-local SMTP address type and routes each to the remote site.

Note   You can use an asterisk (*) for a multicharacter wildcard in an address space. A percent symbol (%) can be used for a single character wildcard.

1. Select the Address Space tab.
2. Choose New to create a new address space or Edit to modify an existing address space.

For more information about address spaces, see Chapter 4, "Address Spaces," or see Microsoft Exchange Server Concepts and Planning.

Assigning an Address Space Cost

Address space costs determine the preference between multiple routes to a remote site. The cost associated with each address space is used to optimize message routing to the foreign system but does not affect message reception. All mail is sent using the address with the lowest cost. If two or more routes are available with the same cost, the load placed on the routes is roughly equal. Address space costs range from 1 to 100.

1. Select the Address Space tab.
2. Double-click the address for which you want to assign a cost.
3. In the Cost box, type a routing cost for messages transferred using this address.

For more information about setting costs, see Microsoft Exchange Server Concepts and Planning.