Use Address Rewrite to rewrite return e-mail addresses on outgoing messages sent from a third-party mail system to Exchange, and destined for external or Internet addresses. This feature is similar to the Exchange 5.5 tool, ReRouteViaStore. Address Rewrite enables address rewrite on each SMTP virtual server. The intent of this feature is to rewrite addresses only for mail coming from the partner/subsidiary company (externally SMTP submitted) coming into your companys e- mail servers and then going out to the Internet.
Address Rewrite is useful in merger or acquisition scenarios in which you want all e-mail addresses to reflect the parent companys name. This version is the first release on CNET Download.com.