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Exchange 2010 Autodiscovery url wrong on external use

Posted on 2012-03-29
Medium Priority
Last Modified: 2012-04-05
I have a wierd problem with my Exchange setup.

It started with users having problem using the Out Of Office function in outlook. I could use it without problem when located inside the domain but external users cant!

When I check the Autodiscovery url from an internal account (inside the domain) it shows up correct;

But when I check Test email AutoConfiguration from an external outlook it gives me

PS gives me this :
[PS] C:\Windows\system32>Get-ClientAccessServer | Select Name, *Internal* | fl

Name                           : EMAIL
AutoDiscoverServiceInternalUri : https://mail.domain.com/autodiscover/autodiscover.xml

Open in new window

Anyone got a suggestion?
Question by:tigerffs
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Author Comment

ID: 37780988
Also, when I check the external URL in PS it gives me
[PS] C:\Windows\system32>get-webservicesvirtualdirectory | FL ExternalURL

ExternalUrl : https://OLDSERVER.domain.com/ews/exchange.asmx

Open in new window

It is pointing to the old exchange 2003 server, could this be the issue?

EDIT: I did set the externalURL to the correct one, it does not help me with the AutoDiscovery though
LVL 27

Accepted Solution

MAS earned 2000 total points
ID: 37781026
Try creating an A record 'autodiscover.domain.com' in your external DNS poiting to your external exchange IP
LVL 27

Expert Comment

ID: 37781035
Change the external URL to

ExternalUrl : https://externalname.domain.com/ews/exchange.asmx
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Author Comment

ID: 37781038
Really I just want to change the URL for autodiscovery for external use of outlook, pointing a fault adress seems like an shortcut.

Author Comment

ID: 37781043
I did that but it had no impact on the problem :(

Author Comment

ID: 37781396
Where does outlook get this AutoDiscovery link from? I need to be able to change it somewhere, but where!? For internal use = OK
External use = NOK
LVL 24

Expert Comment

by:Rajith Enchiparambil
ID: 37782435
Create an "A" record in your public DNS called autodiscover and point it to your firewall with public IP. Get the firewall to forward 443 port traffic to this IP to your CAS server.

There is no setting for this. Outlook looks up the autodiscover record in the email domain of yours. So, if your email is user@domain.com, Outlook checks to find https://autodiscover.domain.com/autodiscover/autodiscover.xml

All you need to do is setup record in public DNS and route it to CAS.

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