Hi,
We are running Exchange 2010 SP2. All our users live in the same AD domain
Current scenario:
We have a domain named 123.com. We use Postini to filter traffic and the MX records are configured in the 123.com zone to point to Postini, then Postini routes email traffic to our CAS servers.
We are trying to acomplish the following:
1.) A group of our users are going to have to use a new domain name abc.com instead of the 123.com
2.) They will need to get their email delivered through 123.com and abc.com while the 123.com is gradually decomissioned. The 123.com email delivery will last for 30 days and while this is happening we want to configure an automatic reply back from the system
with a message that informs about the email change to the @abc.com and instructing them to send to the new domain instead of the old.
3.) Exchange users will have to send email with the @abc.com domain instead of the @123.com domain and they will continue to receive email on 123.com domain for 30 days.
Questions:
What needs to be done in order to get #2 and #3 configured?
