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Solved: Outlook 2016 Mac keeps asking for Office 365 password

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Published By Siddharth Tehri
Aswin Vijayan
Approved By Aswin Vijayan
Published On January 22nd, 2024
Reading Time 4 Minutes Reading

Does your Outlook 2016 or 2011 for Mac frequently prompt for authentication while you are connecting with your Office 365 domain? And, you cannot understand what step should be taken for to get rid of this. Then, this guide will walk through each and every aspect of why Outlook 2016 Mac keeps asking for Office 365 password in detail. Also, provides a reliable approach by which users will understand how to fix Outlook 2016 for Mac keeps asking for password efficiently.

Outlook 2016 Mac keeps asking for Office 365 password

At times, when Mac users enter the credentials, Outlook 2016 not accepting password while connecting with Exchange On-premises or Exchange Online via. Office 365. Also, it will prompt the authentication abruptly and keeps asking for keychain password. This whole circumstance arises because of Keychain Access. It is a macOS application used to store accounts credential information. Thus, if the Microsoft Outlook 2016 for Mac keeps asking for Office 365 password, then try the below mentioned manual solution sequentially. It is a genuine solution to repair Mac Outlook losing password issue in a secure way. But, first, understand a real-life scenario by which readers can clearly understand how and when this situation arises in Outlook 2016/2011.

“Hello, In my company we are working on Mac machine. But, a few days back, we reported some bugs in macOS Sierra and I fix that issue by formatting the system. After that, when I use Mac Outlook and sync it with Exchange, it will constantly ask for the password. Even though the password is correct but it will prompt the process. So, I really cannot understand, it is a bug or a macOS problem. If anyone knows how to resolve Outlook  2016 for Mac keeps asking for password, then please let me know. Thank in advance!”

 

Also Read: How to Convert Mac Outlook OLM to PST?

Why does Outlook 2016 Mac Keeps Asking for Office 365 Password?

It is evident from the above that the reason behind the entire situation is Keychain Access password. Keychain Access is nothing, it’s just an inbuilt feature of macOS that store and save all the Mac-based applications such as Safari, Outlook passwords, and account information. However, Keychain Access is a normal looking password management feature that saves the password, but on a primary level, it has critical functionality. For any reason, if the Keychain Access becomes corrupted then, it will disturb the Mac users in several ways. The same case happens in Outlook; multiple duplicates tokens will generate in Keychain. And, it will confuse with the original password, and keep forgetting it for multiple accounts. That’s why outlook 2016 mac keeps asking for password.

How to Fix Outlook 2016 Mac keeps asking for Office 365 password?

To fix “Keychain Password” issue in Outlook 2016 for Mac while connecting with Office 365, follow the given instructions carefully that are listed below:

  1. Initially, open Keychain Access with the help of any of below-mentioned methods:
    -> Move on Finder application of Mac OS, then select Utilities from the Go menu. After that, double-click    Keychain Access.
    -> Type Keychain Access under the Spotlight Search. Afterward, double-click Keychain Access.
  2.  Once the Keychain Access is open, type Exchange in the search bar of Keychain Access.
  3. Now, from the search results, select each item to view Account that’s mentioned at the apex, and then hit Delete button. Perform this step repeatedly until all the items deleted from your Exchange online account.
  4. Type adal in the search field.
  5. Now, pick all items whose type are MicrosoftOffice15_2_Data: ADAL: and then Delete it.
  6. After the completion of above step, enter office in the search field.
  7. Then, select the items that are entitled as Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then Delete it.
  8. At last, close the Keychain Access.

The above-mentioned steps will be very helpful in troubleshooting Outlook 2016 Mac Keeps asking for Office 365 password.

Conclusion

Keychain Access is one of the dynamic feature of macOS and with the help of this user has no need to remember each and every password. But due to some duplicate tokens generate in Keychain, Outlook 2011 Mac keeps asking for keychain password. Hence, in this article, we are trying to resolve the Outlook 2016 Mac keychain problem without any trouble.

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