I have a unique question I am hoping somebody will be able to help me out with...I am a fiber to the home ISP running Exchange 2003. Employees on our corporate LAN each have a username@mynetfiber.com email address. In addition to this, the customers in our public network are issued email addresses with the same domain, username@mynetfiber.com.I have been tasked with finding out how our employees on the corporate LAN can email outside to our customers who share the same domain name. Currently when we attempt to do this we get the expected response from the exchange server, "The e-mail account does not exist at the organization this message was sent to" because of the domain likeness. We can send to any other domain outside the corporate LAN, just not mynetfiber.com if there is no associated Windows user.Is there some kind of setting that will allow email of this nature to be passed through regardless of whether there is such a user set up on the server?Thanks!

I responded to your cross-post: http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=2762853&SiteID=17