We help IT Professionals succeed at work.
Get Started

Exchange OWA website Redirection

Last Modified: 2017-04-18
Hi Experts,

We have two domains A and B that have a two AD trust between then. DNS and all AD functions are working fine between the two domains.

We are in the process of upgrading our exchange environment from exchange 2010 to exchange 2013 in a DAG configuration (two CAS servers and two Database servers).

The new exchange 2013 DAG servers are in the domain A.  We have successfully migrated the 2010 exchange users and mailboxes in domain A from their exchange 2010 environment.
We want to host the emails for domain B on the new exchange 2013 DAG servers in domain A.
The users in domain B will continue to use their AD credentials in domain B, nothing in AD will be changed in domain B or domain A.

Based on my understanding and some research, we need to configure a Link mail boxes between the two forests and perform a cross-forest migration between the two domains.

The end users for each domains are using their own registered domain to access their emails using OWA. For example, mail.doamainA.com/OWA and mail.domainB.com/OWA

The consultant that is doing the cross-forest migration portion of this project is saying that once we migrate the domain B exchange mailboxes to the target domain forest (domain A) the end users in domain B will have to use the URL for domain A in order to access their e-mails in OWA and on their smart phones.

We migrated some test users from domain B to domain A. I created a custom connector to allow emails that are sent to the migrated users from domain B to domain A to work.
However, when the migrated users from domain B tries to use the OWA URL for domain B, it does not work. I am getting the attached error message.

If I use the OWA URL for domain A for the migrated users from domain B it works.

My issue, is domain B need to keep their registered public domain to access their OWA   URL not domain A OWA URL.
IS the above possible, or I need to now tell the users in domain B that will have to use Domain A OWA URL (mail.domainA.com/OWA) to access their emails instead of their own registered domain (mail.doaminB.com/OWA.

Let me know if you need more information, I tried to explain as much as I could.
Watch Question
Distinguished Expert 2019
This problem has been solved!
Unlock 1 Answer and 7 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE