My company recently merged with another one. let's say my company email domain is abc.com. The company merged with is xyz.com. The new email domain name is abcxyz.com. We are working on migration plan but it will take some time. At the mean time management wants to use abcxyz.com for all emails for both company ABC and XYZ. We both use Exchange 2010. One consultant suggested following:
1. In ABC domain create mail-enabled user accounts for XYZ users. I think what he meant is to create AD account without mailbox. But add email address asxxx@abcxyz.com to the object.
2. Also, in XYZ domain created mail-enabled user accounts for ABC users.
3. make MX pointing to ABC domain. Once Exchange in ABC received the email it can deliver to mailbox-enabled users in ABC (ABC users). This has no problem.
4. Once ABC Exchange received email with xxx@abcxyz.com for email-enabled users (XYZ users) it can routed to their Exchange then deliver to their mailbox. I really don't understand how this part could work. I don't think Exchange will recognize email-enable user as a recipient. Even so, how can I make it to route emails for email-enabled users to another domain?
Thanks in advance,
Chris