Fixing Error Code 0x80072f06 Offline Address Book

Summary: The blog incorporates the solutions to resolve the unknown error code 0x80072f06 Offline Address Book in MS Outlook. It explains all about this Outlook error code. The reasons behind the occurrence of error and the possible methods to overcome it have also been elaborated.

download ost to pst converter tool

MS Outlook is one of the most popular email clients used in various large and small organizations all over the globe. It is well equipped with one of the best features that enable the users to access its files both online and offline mode. As a result, users can access the files even in a weak internet connection or in the absence of internet connectivity. But, like other email clients, there is also a chance of some undesirable scenarios through which users experience MS Outlook error code 0x80072f06. One such unknown error is 0x80072f06 Offline Address Book. So, let’s discuss how to fix Outlook error code in detail.

Outlook Unknown Error 0x80072f06

The error code 0x80072f06 offline address book exchange 2016 is a frequent error in the OST file. It arises when Outlook is not in synchronization with the Exchange Server. Every email client consists of a contact list i.e. Offline address book (OAB). OAB is somewhat similar to GAL i.e. global address list present in the mailbox of the Exchange Server. The Exchange Server stores all the information such as the name, email address of the user in Outlook. In the presence of OAB, Outlook need not connect to Exchange Server every time the mail is sent.

Why Does Error 0x80072f06 Offline Address Book Occur?

Outlook displays this error code when OAB is updated from the Exchange Server by the user. The reasons for the occurrence of the error have been explained below:

  • There is improper Outlook installation.
  • The Windows system file has been damaged.
  • Improperly updating .oab file.
  • Issues with Exchange security certificates.

How to Fix Error Code 0x80072f06 OAB Outlook 2016?

This Outlook error should be fixed as it may lead to inaccessible Outlook data files. So, users approach an effective method to fix this error code in Outlook

Method 1: System Restore to Fix Error Code 0x80072f06

One of the solutions to troubleshoot this error is system restoration. You can perform the system restore to the previous time. For doing this, go through the below steps-

  • Log in on your system as an administrator.
  • Go to Control Panel and choose the system option in the “All control panel items” option.
  • On the left side of the opened window prompt, select the option System protection.
  • Now, on the system properties wizard, first, click on system protection and further on system restore.
Outlook error code 0x80072f06

Next, follow the instructions and procedure for the system restoration. It will take a short duration of time. After the completion of the restore, check whether the issue is resolved or not.

Method 2: Delete the Existing Outlook Address Book File

Sometimes, this Exchange 2016 Offline Address Book may arise due to improper sync between the Exchange Server and OAB file. So, there are chances that after deleting the existing OAB file, the error gets resolved. You can download a new OAB file from the Exchange Server once it gets deleted. Once the newly downloaded OAB file gets synced with Exchange Server, error code 0x80072f06 Offline Address Book Exchange 2016 may no longer arise.

Method 3: Automated Method of MS Outlook Error Code

Performing the above manual techniques, if this Outlook unknown error code doesn’t get fixed, you need to take the help of a professional OST to PST Converter. It is an efficient approach to troubleshoot this unknown Exchange Server Offline Address Book error. It can successfully repair or restores the corrupted OST files and makes them accessible again so that the user can use this. All in one, it is a trusted and feasible solution to the issue.


The users are advised that they should take steps to resolve the errors before they make your important data and files inaccessible to you. All about the Outlook error code 0x80072f06 have been explained in the above article. You can develop your way of fixing the issue without engaging in Outlook restoration. Thanks for reading this article.

About The Author:

Mithilesh Tata is an Email Migration and Data Recovery Expert. He has a keen interest in Technology & Entrepreneurship. Also, he loves cricket, music, and books.


A Wide Range of Software Solution for Outlook Emails and Cloud Backup.

Copyright © 2018-2023 MS Outlook Help All rights reserved.

Sitemap: HTML / XML