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Thursday, November 26, 2015

Resolve OST File showing 0x80072F06 Error

MS Outlook is an amazing email client that has achieved maximum number of users due to its outstanding capabilities and user friendliness. With the ability to function in online as well as offline modes, users can easily work on their Outlook mail accounts without much difficulty. Using Outlook in offline mode creates offline data file (OST) on system drive similar to PST file and changes made to offline folder file will be further updated with the Exchange Server mailbox when network connection redirects. However, while accessing Outlook OST file, users may encounter many error messages due to which access to Outlook data file will be denied. One such error message is Outlook Error 0x80072F06.


0x80072F06 is an error of Outlook OST file, which occurs when Outlook cannot be synchronized with the Exchange Server. Offline address book (OAB) is a contact list, which is used by every email account of Outlook. OAB is just similar to global address list (GAL – present in Exchange Server mailbox) that contains set of properties of user information like email addresses and names that are frequently used by Outlook. In the presence of OAB, Outlook need not connect to Exchange Server each time when any mail has to be sent or when any user information is needed.

Causes of 0x80072F06 Error

Improper Updating of .oab File - Sometimes OAB list can’t be updated with the Exchange Server due to faulty system errors.
Security Certificate on Exchange Server - The certificate common name (host name field) is incorrect.
 Windows System Files Damage - The corrupted system file entries can be a real threat for the user computer.
Incomplete installation, uninstall, improper deletion of applications or hardware.
Virus or adware/spyware attack or by an improper shutdown of the computer.

How to Fix 0x80072F06 Error

Method 1
System Restore

1. Start your computer and log on as an administrator.
2. Click the Start button then select All Programs, Accessories, System Tools, and then click System Restore.
3. In the new window, select "Restore my computer to an earlier time" option and then click Next.
4. Select the most recent system restore point from the "On this list, click a restore point" list, and then click Next.
5. Click Next on the confirmation window.
6. Restarts the computer when the restoration is finished.

Method 2
Server Configuration

1. Go to Server Configuration -->Client Access-->Offline Address book distribution.
2. Ensure OAB URLs are set correctly in "Server Configuration -->Client Access-->Offline Address book distribution".
3. Ensure it matches the name in the SSL certificate.
4. Ensure you can ping mail.emaildomain.com and autodiscover.emaildomain.com from internal network which returns your internal exchange IP.

Method 3
Set Autodiscover and OAB

Enter the below command in Exchange Management Shell and see the Autodicover URLs are set.       
Get-clientAccessServer | f1 Name, AutoDiscoverServiceInternalUrl
If you see the default URLs set by exchange installation use the below command to set it to the same as external.        
Set-ClientAccessServer -Identity server1 –AutoDiscoverServiceInternalUrl https://mail.domain.com/autodiscover/autodiscover.xml

For OAB

Enter the below command in Exchange Management Shell and see the offline address book URLs are set.     
Get-OabVirtualDirectory | f1 Server, Name, internalurl, externalurl
If you see the default URLs set by exchange installation use the below command to set it to the same as external.

Set-OabVirtualDirectory -Identity "server1\oab (default web site)" -InternalUrl https://mail.domain.com/oab

Conclusion

0x80072F06 Error is related to OST files, which occurs when there is improper synchronization between Outlook and Exchange Server.

This article describes the common causes and the ways to fix them using different methods.
I hope the article helps the users to understand the 0x80072F06 Error of OST file in Outlook/Exchange.
For any query or suggestions, do comment.

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