Hi,
We have recently been letting out one of our office, which was having a AD domain(abc.com) with email domain(123.com) created with seprate name.One of teh mailbox server of that email domain(123.com) was hosted in one of our office in India. Now the requirement is to cut off all the dependancy from that domain(abc.com) and have separate exchage infra(123.com) in India. We have AD domain in India(123.com) and want to share to have teh same SMTP domain(123.com). For this we have created new Exchange 2013 server with CAS and MB roles(in 123.com). We need help how to configure mail flow for the users who will be on this new exchange. The MX record is hoseted in the office which is to shutdown, however we can host this till the time we completely migrate teh users in India. The user migration will be done by creating teh pst and deleting and recreating the users innew Exchange. Below are teh queries:
1. How will the external mail be recieved to teh new domain 123.com users
2. During teh migration how will teh users share mails between the two diffrent exchange server with same SMTP domain.(Ad domain is diffrent)
Appreciate your help in advance...
Manu