Hi, I'd installed exchange 2000 with SP3 on a low end box, now I've installed exchange server on a high end server and moved all the mailboxes to the new server. Both the servers are on the same domain. How do I remove the first server and retain only the new server? The e-mail alias for all the mailboxes is taking as username@xxxxxxxxxxxxxxxxxxxxxx, If I modify this entry to the new server say username@xxxxxxxxxxxxxxxxxxxx all the messages are bouncing back. What do I need to remove the first server ?? Help pls Thanks in advance. Gopi Krishna