Hi All We are currently in the process of migrating our 20 or so exchange 5.5 sites to exchange 2003, We have installed exchange 2003 at our head office and all appears to be OK All site connectors and IMC are running on a exchange 5.5 in the head office and remote offices We are trying to move the site connectors at the head office onto the 2003 exchange server to make them Routing Group Connectors to each 5.5 site. When we do this mail flows OK when we have 1 or 2 running but as soon as we move 3 or 4 connectors, Mail backs up and and massive queues form. I have tried splitting the load across 2 servers and leaving it for a couple of days to settle down but the mail queue is still backlogged. As soon as we move the connectors back to 5.5 mail starting flowing normal. Has anyone come across this problem previously? Regards Mark Barton System Support Officer V.Ships (UK Ltd) + 44 (0)141 305 7763 mailto:mark.barton@xxxxxxxxxx www.vships.com <http://www.vships.com/> ************************************************************************************************************ This email is confidential and intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing or copying of this email is strictly prohibited. If you have received this email in error please contact the sender.