We created a new domain with exchange 2007 server.
We exported user mailboxes from old SBS server into pst and imported into into exchange 2007 with exmerge.
Replies to old internal emails are bouncing because there is no x400 address.
How can I add these back in with Exchange 2007. (Or a Windows XP computer with Exchange 2003 MGMT tools on it)
Thanks in advance.