We recently added a new Exchange Server (2003) to our Exchange 2003 organization. Our Internet Mail Connector is still on our original mail server and we added the new server as a bridgehead server to this Internet Mail Connector. The users that have mailboxes hosted on the new Exchange server can send e-mail outbound to the internet without trouble with the exception of two domains so far. They are aol.com and Comcast.net. It appears from headers that I have looked at that the accounts being hosted on the new e-mail server are going directly out to the internet from the new box with SMTP and not going through the Internet Mail Connector on our original mail server. I had thought that all internet bound (outbound) e-mail would route through the IMC on the original mail server, but I was incorrect. For those mailboxes that are still on the original Exchange server, e-mailing aol.com and Comcast.net isn't an issue. Any thoughts or advice? Thanks, Javier Ornelas MSU Health Information Technology Network Services/Support A118K Clinical Center East Lansing, MI 48824 (517) 355-6531 (517) 432-4774 fax