We currently have a Postfix email server and we are converting to Exchange 2007. While transitioning users to the exchange box I have set up a .forward file on postfix to send those users email to Exchange when their profile is setup. The issue I am having is that if the user that is on exchange trys to send an email to a local user who is not currently on exchange the recipient address fails instead of sending unknown addresses to the Postfix server. Is there a way to temporarily configure exchange to forward to the Postfix server if the recipient is not found in its list of mailbox users. Thanks

hi Add your liux domain in accepted domain . Telnet hub to postfix. telnet postfix to hubtranport. Editing of hubtranport server ip in hosts file of linux and neccessery addition in linux . create a send connector represents internal relay and configure the ip of linux postfix server . http://technet.microsoft.com/en-us/library/bb676395.aspx. Regards Syed Arsalan. syed.arsalan

Thank you very much!! That did the trick.Gary