Hi,

I have Exchange 2013 and 2007 running in coexistence and Outlook clients can connect to their respective mailboxes.

I am however going round in circles now with OWA which I am currently testing internally first before rolling out to external users.

I've read and followed various articles and seem to be getting a step closer each time and hopefully someone can point me in the right direction for the final hurdle!

The issue we are having is as follows:

We enter URL of https://mail.mycompany.com/owa which in turn presents the 2013 OWA page.  We enter credentials for a 2013 mailbox user and get straight into OWA no problems at all.

So we do the same with a 2007 mailbox user, enter credentials "domain\user", OWA redirects and presents a second login screen which I can see is to connect to the legacy.mycompany.com/owa site.

However after entering the credentials for the second time, the web page refreshes and takes the user back the original 2013 landing page.

Grateful for any suggestions.

Many thanks

Chris

Hi,
Why not install CU2 so that you'll get a single sign-on experience?

If you have redirection configured in IIS on the Exchange 2007 Server...Make sure that the Virtual Directories doesn't have it configured.

Have you changed the Internal- and ExternalUrl for OWAVirtualdirectory on EX07 to legacy?

Hi,
Why not install CU2 so that you'll get a single sign-on experience?

If you have redirection configured in IIS on the Exchange 2007 Server...Make sure that the Virtual Directories doesn't have it configured.

Have you changed the Internal- and ExternalUrl for OWAVirtualdirectory on EX07 to l

Hi,
Having to log on twice is not very user friendly, so installing CU2 is a good thing.
You can read about changes made in CU2 here

Yea, check if any VDir in Exchange 2007 has redirection configured.
You should be able to log on directly using the URL https://legacy.domain.com/owa with a mailbox on EX07.

Hi,

Yea the legacy.domain log on works just fine and goes straight EX07 mailbox, now just waiting for the CU2 to finish installing and checking the VDir in the meantime.

Thanks,

Chris

Hi

So the CU2 install is now completed and internally everything is working as it should, hooray :) and no second sign in :)

Unfortunately, coming in externally I can get as far as the 2013 OWA mailbox but when I try an EX07 account Chrome reports "Webpage has redirect loop" and IE just sits there with a timer.

I can see in the browser bar it changes to legacy but doesn't reach the mailbox.  I really thought if the internal redirection works then external should.

I changed the Static NAT rule on the Cisco firewall to point at the new EX2013 server, I can't see anything else to change now.

Most grateful for any further suggestions

Thanks

Chris

Certainly is :)

well the https://legacy.domain.com/owa has the same error externally as well :(

I have already added the public dns for this via my ISP, so legacy.mycompany.com points back to the same external IP as our mail.mycompany.com

This then hits our firewall and the static NAT points to the EX2013 server which combined with internal DNS would take care of the EX07 requests.

Am I missing something obvious here?

Hi,

Try to publish the legacy Exchange 2007 server as a separate Exchange 2013 rule on firewall.

Hope it is helpful

Mavis