Determine whether the Autodiscover service is working, and check access to the Offline Address Book
Check whether Outlook and the computer can access the Offline Address Book file on the server. This action is typically done by Outlook in the background. It also happens when you force a download of the Offline Address Book in Outlook. To do this check, sign in to the Microsoft 365 portal, and then follow these steps:
- Start Outlook.
- Hold down the CTRL key, right-click the Outlook icon in the notification area on the right side of the taskbar, and then click Test E-mail AutoConfiguration.
- Click to clear the Use Guessmart check box, and then click to clear the Secure Guessmart Authentication check box.
- Click to select the Use AutoDiscover check box.
- Type the email address and password, and then click Test.
- On the Results tab, note the path of OAB URL.
- Click the XML tab, locate the <OAUrl> and </OABUrl> tags, and then copy the path that’s displayed between the tags. Paste the path into the address box in Windows Internet Explorer, add /OAB.xml to the end of the path, and then press Enter.
The following is an example of what the URL may resemble:
NOTE: The information that’s displayed in the webpage in Internet Explorer. The webpage should contain lots of XML data.
The figure below depicts an example of the information that should be displayed in Internet Explorer.
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