Configuring Unique Receive Connector SMTP Banners in Exchange Server
My best practice is to create dedicated receive connectors
in Exchange for each receive purpose. For
example, I'll create one receive connector for inbound SMTP email from the Internet
or from inbound gateway servers and another for internal application Read More...
Read the complete post at http://www.expta.com/2012/11/configuring-unique-recieve-connector.html