How can I use an alternate address with Exchange Server?

Executive Summary:

Use an alternate address with Microsoft Exchange Server to send a message from a secondary proxy SMTP address as though the message came directly from that email address.

Q: How can I use an alternate address with Exchange Server?

A: A common request in Exchange shops is for users to be able to send a message from a secondary proxy SMTP address or additional mailbox as though the message came directly from that email address. Support personnel who monitor a secondary alias or mailbox (e.g., support@domain.com, webmaster@domain.com) often need this capability. In addition, a merger of two enterprises might require users to send from different Exchange organizations for which no trust has been configured. . . .