I am running exchange 2000 on W2k Server with active directory. The problem I have is that when the active directory domain was setup it has the same domain name as my web domain. So if my web domain is mydomain.com the name of my active directory domain would also be mydomain.com. (This was not a smart choice but it is a little too late to go back now)
We have two mail servers, our exchange server and a hosted mail server. The problem comes into play when someone on the internal network attempts to send mail to someone outside the network but also has the same extension of mydomain.com for their email address. So what happens is that firstname.lastname@example.org sends and email to email@example.com who works at a seperate location(not on the exchange server) but gets their email through the hosted mail server.
The problem is firstname.lastname@example.org does not receive the email, because they do not have a valid account exchange account and email@example.com receives an unknown recipient error message. I have attempted to set-up smtp forwards for all mail with unresolved reciepients, but when I check the queue the messages are hung and does not forward.
Is there any other way for firstname.lastname@example.org to send mail to email@example.com or does anyone have an idea why the forward fails with "The connection was dropped by the remote host."