Is it possible to have two Exchange 5.5 boxes setup like so:

1 running *only* IMAP ( user@domain1.com )
1 running *only* POP3 ( user@domain1.com )

They are in different physical locations, and are also on different
Windows domains, but I would like to be able to allow the users to have
the same domain in their email addresses independent of what server or
protocol they are using.