Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1
Topic Last Modified: 2006-07-17

Use the Add Blocked Senders dialog box in the Blocked Senders tab to maintain a list of senders who are blocked from sending messages to your organization. You can block individual senders, individual domains, or domains and all subdomains.

Individual e-mail address

To block an individual sender, select Individual e-mail address and then type the Simple Mail Transfer Protocol (SMTP) address of the sender that you want to block. For example, type


To add all senders from a domain to the blocked senders list, select Domain, and then type the domain name in the domain fieldsuch as

Include all subdomains

To include all subdomains to the blocked domain, select Include all subdomains. This check box is active only when you select Domain.

For More Information

For more information about sender filtering, see the following topics: