Applies to: Exchange Server 2007
Topic Last Modified: 2007-06-15
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 firstname.lastname@example.org.
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.