Hi

I have a mixed 2010 - 2013 environment and things are almost working as expected. 

Right now I have 3 mailboxes in 2013, but if I try to create a new Outlook with one of those mailboxes I get the "cannot open your default e-mail folders".

If I log on to a pc with that user, Outlook finds the mailbox without any problems.

Why does it fail when I try to create a profile on another users login? It seems that it resolves to the old CAS array (RpcClientAccessServer). Even if I try to repair the Outlook profile it resolves the wrong (2010) CAS array.

Any ideas?

BR
Steen

• Edited by steenpedersen Friday, August 21, 2015 12:24 PM

The problem is at a customer and they say they have done that. (maybe only the Autodiscover).

I was at another customer at the time I got the question. They are also during a migration. I could reproduce the error. At that customer autodiscover was not pointed to the 2013 servers, but I tried to do it in the host file, but that didn't change anything.

I am not sure about EWS and OAB urls. What if you wish to change namespace during the migration? I mean, if you use "something.domain.com" and in the 2010 environment you wish to use "mail.domain.com" in 2013, would you then change anything in the 2010 servers?

BR
Steen