IMF Filtering
In one of the public newsgroups recently, there was a discussion of IMF filtering internally generated admin email (alerts, performance reports, etc.). Steve Mills suggested adding the loopback IP address (127.0.0.1) to the IP Accept List. Click here to go to the web page with full instructions.
Meanwhile, here's a summary of the steps:
1. From the Exchange System Manager open the properties for Global Settings | Message Delivery.
2. Select the Connection Filtering property page
3. Click on the Accept button
4. Click on the Add button to specify the IPs for hosts whose emails are to be accepted without further Connection Filtering or IMF processing. Here is where you add 127.0.0.1.
5. Save and close all dialogs.
Next enable Connection Filtering at each SMTP Virtual server where the Accept list is to be enforced:
1. Browse the left pane tree and open the properties for:
<Organization> | Servers | <Exchange Server> | Protocols | SMTP | <SMTP Virtual Server>
2. From the General property sheet click on Advanced.
3. In the Advanced dialog that opens select the IP on which Connection Filtering is to be enabled and click on the Edit button.
4. Set the 'Apply Connection Filter' checkbox.
5. Save changes.