Curently I have an exchange mail server with about 50 users on it. I also have a Qmail server with about 200 users on it. These mail server host for the same domain. email is deliverd to the exchange server and all unknown users are forwarded to the qmail server. This works great. What I am having a problem with is that I run mailing lists, forums and other programs on the qmail server. all these programs use qmail to send emails to users. qmail is unable to send to anyone on the exchange server. qmail sees an email for mydomain.com and says hay thats me, tries to find the local box but cant because it is on the exchange server and bounces it. how can I get these messages to the exchange server?