Add/Edit SMTP Access Control List

How to get here

Use the Access Control Add page to add a single computer or group of computers to the Access Control List.

• Add a Single Computer. Select this option if you want to allow or deny access to a single computer. If you select this option, you may enter text into the IP address text box.
• Add a Group of Computers. Select this option if you want to allow or deny access to a group of computers. If you select this option, you may enter text into the Subnet Mask text box.
• IP Address. Enter the IP address of a single computer that you want to allow or deny SMTP access.
• Subnet Mask. Enter the subnet mask of the computer group that you want to allow or deny SMTP access.

Important: You must restart the SMTP service for the changes to take effect.