Configuring and Using an SMTP Connector for Exchange Mail Server
Source: http://www.amset.info/exchange/smtp-connector.asp
The SMTP Connector on Exchange is a powerful tool for an Exchange administrator. It allows you to make SMTP email work in the way that you want it to, instead of allowing Exchange to try and work it out for you.
SMTP Connector Uses
* Outbound EmailIt can be used to send email via your ISPs [...]