Resolved: Outlook Mac Keeps Asking for Credentials

Why Does Outlook 2016/2019 Asks for Password

It is evident from above that the reason behind this situation is Keychain Access password. Keychain Access is an inbuilt feature of macOS that store and saves all the Mac-based applications.

Due to unexpected reasons, Keychain Access can be easily damaged or corrupted and it will disturb the Mac users in several ways. Similarly, in Mac Outlook, multiple duplicate tokens will generate in Keychain. It will lead to a complex situation and confuse with the authentic credentials. As a result, it forgets the original password and keeps asking for it. That’s why Outlook 2016/2019 Mac keeps asking for a password. Why Outlook Mac Keeps Asking for Credentials

Fix Outlook 2016 For Mac Keeps Asking Password of Office 365 Account

To troubleshoot this problem, you need to delete any cached passwords for your account, and also delete any authentication tokens from the keychain. To do this, follow the steps given below:

1. First of all, you need to quit Outlook and all other Office applications.
2. Now, start Keychain Access by using one of the following methods:
1. Click on the Finder application, click Utilities on the Go menu, and then double-click Keychain Access.
2. Under Spotlight Search, type Keychain Access, and then double-click Keychain Access in the search results.
3. In Keychain Access, enter Exchange in the search field.
4. Under the search result, select each item to view the Account that’s listed at the top, and then click Delete. You have to repeat this step to delete all items for your Exchange account.
5. Inside the search field, enter adal.
6. Then, select all items whose type is MicrosoftOffice15_2_Data: ADAL:<GUID>, and then click on the Delete button.
7. Under the search field, type office.
8. After that, select the items that are named Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then click Delete.
9. Now, Quit Keychain Access.

If you are not comfortable using Mac Outlook then you can Convert Outlook OLM files to Outlook PST in order to access emails on Windows.

Conclusion

As of now, you must be aware of the fact that Keychain Access is one of the dynamic features of mac OS. By using this, there is no need to remember each and every password. But due to the generation of some duplicate tokens in Key chain, Outlook Mac keeps asking for credentials. Hence, in this article, I have provided a method to resolve this issue. Hope it helps.

About The Author:

Lovely Baghel

Lovely specializes in technical writing for SysInfoTools Software and has over 2 year of experience writing blogs, and articles about databases & backup, email recovery, email migration & management solutions. Her passion is researching and developing content that helps Office users, professionals, administrators, enterprises, and novices solve multiple problems.