Need to add another domain to my exchange server.

[Oyeve]

We have aquired this company whos emails are going to gmail from their domain name. I want to put them on our exchange server but I want them to retain their domain name.

Example:

Joe@unlimited.com has email going to a @gmail.com address, when he sends an email from the @gmail.com is shows as joe@unlimited.com

But I want him on our exchange server but still show as joe@unlimited.com . Whats the easiest way to do this?

 

[Dug]

Which version of exchange do you have?
You need multiple recipient policies.
If they had a 'unlimited' domain and its still running, you need to go to EMC and add New Accepted Domain.

Have you added the 'unlimited' domain to yours?

And does Joe now log onto your domain?

 

[Lifted]

In addition to policies as Dug stated, you can uncheck the option on their mailbox to automatically update the email addresses based on the policy. You can then manually add the email address to their mailbox, or if there are hundreds of users, write a script to do this via powershell.

In Exchange 2010 you'd also need to add the domain to the accepted domains on the hub transport org config. I don't remember if this was present in 2007.

After doing all of the above, redirect the mx records to your server.

As part of the migration, you should probably have the the gmail accounts forwarded to secondary email addresses on your server (joe@unlimited.com forward to joe@yourcompany.com) so nothing will get lost during the DNS updates.

 

[drebo]

In Exchange 2003, it's really easy. Just add another SMTP address under the user account.

In 2007 and 2010, you need to adjust the transport roles, but it's still relatively straightforward.