I currently have a customer that has two domain names. My problem is that users have already had business cards made and they are not using one domain name as the email. some users are .com and others are .net. What I am trying to do is allow email to user1@example.com and user1@example.net go to the same email box. This way all email is accepted at both addresses, but only one mailbox rather then two. Can someone explain to me how to set this up in a Microsost DNS setting? Much thanks in advance!