I have recently migrated an Exchange 2003 org to Exchange 2007 sp1. After the migration everything has been going perfect. I recently to add a send connector to send mail to another Exchange 2003 server in a different org and domain, but on the same LAN. Once I created the connector I could no longer send mail externally from the Exchange 2007 server. I deleted the connector and thought all would be well. The issue is still there. I then deleted the original send connector to the internet and re-created it. Still nothing. PLEASE HELP!