Summary:
How do I enable SMTP Recipient Filtering with my Microsoft Exchange 2010 server to perform recipient verification/validation?

Following are the steps to enable recipient filtering to allow PerfectMail to validate e-mail users for Microsoft Exchange.

When recipient filtering functionality is enabled, it filters all messages that come through all Receive connectors on that computer. By default, recipient filtering is enabled on the computer that has the Edge Transport server role installed for inbound messages that come from the Internet but aren't authenticated. These messages are handled as external messages. If this feature is turned off "all e-mail addresses will be accepted" by both Exchange and PerfectMail.

Please ensure you have the appropriate permissions to perform this task.

Use the EMC to enable or disable recipient filtering:

1. Open the EMC on the Edge Transport server.
2. In the console tree, click Edge Transport.
3. In the work pane, click the Anti-spam tab, and then select Recipient Filtering.
4. In the action pane, click Enable or Disable as appropriate.

Use the Shell to enable or disable recipient filtering:

1. Set-RecipientFilterConfig - Enabled $true

For detailed syntax and parameter information, refer to help for Set-RecipientFilterConfig.