Hello.

We are recently migrated from Exchange 2010 to 2013 CU8. All roles are installed on one server.
Most of our users connecting to Exchange from external networks with Outlook 2013 and they get this autodiscover.xml (see http://pastebin.com/LWaDYDUy).

Here virtual directory config:

get-AutodiscoverVirtualDirectory | fl identity,internalurl, externalurl
Identity    : EXCH02\Autodiscover (Default Web Site)
InternalUrl :
ExternalUrl :

get-ClientAccessServer | fl identity,AutodiscoverServiceInternalUri
Identity                       : EXCH02
AutoDiscoverServiceInternalUri : https://exch02.company.local/autodiscover/autodiscover.xml

get-webservicesvirtualdirectory | fl identity,internalurl,externalurl
Identity    : EXCH02\EWS (Default Web Site)
InternalUrl : https://exch02.company.local/EWS/Exchange.asmx
ExternalUrl : https://mail.company.com/EWS/Exchange.asmx

get-oabvirtualdirectory | fl identity,internalurl,externalurl
Identity    : EXCH02\OAB (Default Web Site)
InternalUrl : https://exch02.company.local/OaB
ExternalUrl : https://mail.company.com/OAB

get-owavirtualdirectory | fl identity,internalurl,externalurl
Identity    : EXCH02\owa (Default Web Site)
InternalUrl : https://exch02.company.local/owa
ExternalUrl : https://mail.company.com/owa

get-ecpvirtualdirectory | fl identity,internalurl,externalurl
Identity    : EXCH02\ecp (Default Web Site)
InternalUrl : https://exch02.company.local/ecp
ExternalUrl : https://mail.company.com/ecp

get-ActiveSyncVirtualDirectory | fl identity,internalurl,externalurl
Identity    : EXCH02\Microsoft-Server-ActiveSync (Default Web Site)
InternalUrl : https://exch02.company.local/Microsoft-Server-ActiveSync
ExternalUrl : https://mail.company.com/Microsoft-Server-ActiveSync

We are using certificate from domain CA with SAN:

DNS name=mail.company.com
DNS name=exch02.company.local
DNS name=autodiscover.company.com
DBS name=company.com

All working fine except one thing: Outlook 2013 from external network trying to download OAB from internal url. Here is output from "bitsadmin /list /verbose":

GUID: {E8FD9E21-77DC-44C8-9960-3B086B6FD197} DISPLAY: 'Microsoft Outlook Offline Address Book 48261807ff5b2b4ebaf2aa8b9a626b7d'
TYPE: DOWNLOAD SrTATE: TRANSIENT_ERROR OWNER: pc\user
RETRY DELAY: 300 NO PROGRESS TIMEOUT: 3600 ERROR COUNT: 1
PROXY USAGE: PRECONFIG PROXY LIST: NULL PROXY BYPASS LIST: NULL
ERROR FILE:    https://exch02.company.local/oab/367ba544-1aed-4ded-901e-6346e228d522/oab.xml -> C:\Users\user\AppData\Local\Microsoft\Outlook\oab2.xml
ERROR CODE:    0x80072ee7 - The server name or address could not be resolved
DESCRIPTION: Microsoft Outlook Offline Address Book Directory
JOB FILES:
        0 / UNKNOWN WORKING https://exch02.company.local/oab/367ba544-1aed-4ded-901e-6346e228d522/oab.xml -> C:\Users\user\AppData\Local\Microsoft\Outlook\oab2.xml

After a hour BITS will cancel this job and download OAB from external URL without any problem. But if i restart Outlook - it will again use internal URL.

Any ideas?

• Edited by kimurin 20 hours 37 minutes ago

Hi kimurin,

Thank you for your question.

Did this issue occur all external users?

We could close outlook and navigate to C:\Users\user\AppData\Local\Microsoft\Outlook\Offline Address Book, then delete all sub-files on offline address book and restart the outlook to check if the issue persist.

If there are any questions regarding this issue, please be free to let me know. 

Best Regard,

Jim

This issue occur for all external users even with completely new Outlook profile. And it really strange...

The issue presist after deleting this files.