You want to filter messages delivered to Study.COM.
First, SMTP virtual server of EXCHANGE SERVER 2003 in Study.com
-->properties --General Tab--Advanced button
Select Apply Sender Filter, Apply Sender ID Filter, Apply Recipient Filter, Apply Intelligent Message Filter, and Apply Connection Filter.
Second, Global Settings -- Message Delivery --Properties
Configuring the corresponding filters.
Connection Filter
For example, the Contoso.com DNS name is in Real-time Block List of a service provider AAA. Connection Filter of Study.Com includes the RBL service provider. When Contoso.com sends messages to Study.com, Study.COM exchange server sends a query to RBL service provider AAA. Because the positive match is found, Study.COM SMTP server rejects the SMTP connection from Contoso.com.
Sender Filter
You configure the sender filter of Study.com with ghost@contoso.com. When ghost@contoso.com sends messages to Study.com, it will be rejected.
Recipient Filter
Jane@study.com does not want any messages delivered from Internet. You can put Jane@study.com in the Recipient Filter. It also filters the messages that are directed to non-exist e-mail.
Sender ID Filter
Sender ID refers to SMTP server.
When Study.Com smtp server receives a message, it checks the sender's SMTP server address. The verification is automatically performed by ISP or recipient's mail server before the e-mail is delivered to user.
