How to Set Delivery Restrictions on the SMTP Connector

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The default setting allows everyone in your organization to use the SMTP connector. In most situations, the default setting is sufficient because you generally want your users to be able to send Internet mail. If you want to set more rigid restrictions, use the How to Enable Registry Keys for Delivery Restrictions procedure and the following procedure to set delivery restrictions. After enabling the registry key and restarting the services, you can set delivery restrictions on the SMTP connector.

Before You Begin

Before you perform the procedure in this topic, read Connecting Exchange to the Internet and How to Enable Registry Keys for Delivery Restrictions.

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 set delivery restrictions on the SMTP connector

  1. In Exchange System Manager, expand Connectors by performing one of the following steps:

    • If you do not have routing groups or administrative groups displayed, expand your Exchange organization, and then expand Connectors.

    • If you have only routing groups displayed, expand Routing Groups, expand <Routing Group Name>, and then expand Connectors.

    • If you have only administrative groups displayed, expand Administrative Groups, expand <Administrative Group Name>, and then expand Connectors.

    • If you have administrative groups and routing groups displayed, expand Administrative Groups, expand <Administrative Group Name>, expand Routing Groups, expand <Routing Group Name>, and then expand Connectors.

  2. Right-click <your SMTP connector>, and then click Properties.

  3. Click the Delivery Restrictions tab.

    The Delivery Restrictions tab of the SMTP Connector Properties dialog box

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  4. To accept messages from everyone, but to reject specified users:

    1. Under By default messages from everyone are, verify that Accepted is selected.

    2. Under Reject messages from, click Add, and then, in Select Recipient, type each user or group's name that you want to prevent from using the connector.

  5. To reject messages from everyone but specified users:

    1. Under By default messages from everyone are, click Rejected.

    2. Under Accept messages from, click Add, and then, in Select Recipient, type each user's name that you want to allow to use the connector.