We currently own the Internet domain of abc-xyz.com. This allows us to receive e-mail by an SMTP feed of the form firstname.lastname@example.org from our service provider. We have recently purchased the domain of abcxyz.co.uk and registered it with our current service provider. We now want all e-mail addresses to be of the form email@example.com, without of course losing the existing incoming mail to firstname.lastname@example.org. I have arranged for mail to email@example.com to also be forwarded on to us by the service provider, and they quote 48 hours for changes to propagate over the net. My question now is, "what do I have to do to configure Exchange 5.5 next to achieve the above objective?" We are running NT 4.0 S.P. 6 if that is relevant. Thanks for any help or advice.