Link to home
Create AccountLog in
Avatar of llarava
llaravaFlag for Afghanistan

asked on

Exchange accepting email from 2 different domains and delivering to the same user - question

Hi,

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?
Avatar of Manpreet SIngh Khatra
Manpreet SIngh Khatra
Flag of India image

What is the version of Exchange here ?
Are you renaming Domain or simplying adding a new address just for receiving emails ?

- Rancy
Avatar of llarava

ASKER

Exchange 2010 SP2 - All the users belong to the same AD domain. No renames we just want to use different SMTP domains.

http://technet.microsoft.com/en-us/library/aa996314.aspx
So as said you will have to have an Accepted Domain and also the same Domain name added to the MX and any Firewall rule.

Then have the smae to a EMail policy and applied to the set of users with a Filter rule.

- Rancy
If i were you I'd simply add a disclaimer line on every email that is sent out stating that our new email address is @abc.com and @123.com would be phased out on 31st Dec (sort of)

This is a transport rule that you'll need to create.

You shouldn't resort to automatic responses - since that'll be inviting unnecessary attention of spammers and lead to more chaos, and trust me you don't want to walk that path.

Regards,
Exchange_Geek
Avatar of llarava

ASKER

I guess the part that I am not quite understanding is needs to be done in order for the users to send with the new abc.com instead of 123.com?
@llarava:

I totally understand you're thought process where in you want to ensure that folks who are emailing you should continue to serve emails to your new domain.

You might look towards setting up inbox rules to automatically respond to emails that are delivered to them with the response

"Thanks for sending us an email,
we request you to send an email next time to @abc.com instead of @123.com
Thanks and Regards,
Department of IT
123.com"

Regards,
Exchange_Geek
Avatar of llarava

ASKER

Hi,

Thanks for you reply. What I am saying is that I need the users to send emails and reply to  emails with the new abc.com domain instead of the old 123.com domain.

For example:

user1@abc.com (new domain)
user1@123.com (old domain)

the user needs to receive in both domains but reply back to any emails as user1@abc.com

How do I get that configured?
That's simple, you'll need to add a new email address policy that'll have @abc.com as primary and @123.com as secondary, make this new policy as default.

So, users will receive emails for both but they reply with @abc.com only.

Oh and don't forget to add @abc.com as a new accepted domain.

Regards,
Exchange_Geek
ASKER CERTIFIED SOLUTION
Avatar of ExchKT
ExchKT

Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account