How to host and receive another domain email in Exchange 2010

Hi all,
Thanks in advance if anyone can guide me to complete this task.
We have two public DNS: "aaa.com" and a new "bbb.com" for company new business.
Currently only one MX record "mail.aaa.com" point to a public IP of our Exchange 2010 server.
Internally we only have one domain "aaa.com" and all company client computers and servers are within "aaa.com" domain.
Here is the task without changing internal domain structure:
1. Exchange server can receive incoming email to "username@bbb.com"
2. Add additional "bbb.com" email account to user's outlook 2007/2010. So each user will have "username@aaa.com" & "username@bbb.com" and they both can receive individual emal.
I am not Exhchange expert so please kindly help me. If you need further information please feel free and let  me know.
Appreciate!!!!
generaitAsked:
Who is Participating?
 
MutogiConnect With a Mentor IT ManagerCommented:
0
 
MutogiIT ManagerCommented:
0
 
Malli BoppeConnect With a Mentor Commented:
1.) Ask you Public DNS hosting company to create a MX record for bbb.com and point to mail.aaa.com
2.) Create an accepted domain in the exchange 2010.
3.)Modify the email address policy and add the 2nd email addess as username@bbb.com
4.)Appy the email address policy.

Additional Steps
If using  spam filters you need to add bbb.com as trusted domain.
0
Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

 
generaitAuthor Commented:
Thanks for reply.
I have created another MX record as mail.bbb.com and point to the same public IP of mail.aaa.com
And I am going to create an accepted domain. Just want to make sure this should be "authoritative domain" right?
Also I refer to this article:http://www.petri.co.il/configure-exchange-2010-receive-email-external-domains.htm
I don't see where to modify email address policy. Would you mind telling me more detail about the setting.
Many thanks for your patience of my newbie questions.
0
 
generaitAuthor Commented:
Thanks for the info.
One more question, do I need to modify Send connectors and Receive connectors in this case?
0
 
Malli BoppeCommented:
No You don't need to modify them.
0
 
generaitAuthor Commented:
Got it. Just tested and successfully received email sent to "bbb.com"
Just wonder can I select which domain I want to use for reply?
0
 
MutogiIT ManagerCommented:
Yes, but only one I believe our by a user by user case.
0
 
Malli BoppeCommented:
I don't know if you can do that.
0
 
MutogiIT ManagerCommented:
goto settings under user in exchabge and select I beleive email tab

select default email you want and press mark as primary
0
 
generaitAuthor Commented:
Yes I know under account properties> Email Tab I can add for example: user@bbb.com
However it seems I only can pick one as default reply email.
In this case if my default is user@aaa.com, if receive email sent to user@bbb.com, it will cause customer confused since it will use aaa.com as reply domain.
So I wonder if there is any way I can select reply email before I hit send button.
0
 
Malli BoppeCommented:
You need remove the additional email address and create a new mailbox.

http://exchangepedia.com/2007/04/how-to-send-as-alternate-email-address.html
0
 
generaitAuthor Commented:
Good to know these workaround. I will create 2nd mailbox and use new domain as default reply email.
Thank you both for the prompt help. Problem is solved and I really appreciate it.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.