Edge Transport > Anti-Spam > Sender Filtering Properties > Blocked Senders Tab > Add Blocked Senders Dialog Box

Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1

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 kim@contoso.com.

• Domain
  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 contoso.com.

• 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:

• Anti-Spam and Antivirus Functionality

• Sender Filtering

• Configuring Sender Filtering

• Sender Filter Agent Cmdlets