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1. Microsoft Exchange Outlook 2010 Authentication Failed Mac Os
2. Microsoft Exchange Outlook 2010 Authentication Failed Macbook Pro
3. Microsoft Exchange Outlook 2010 Authentication Failed Mac Os
4. Office 365 Outlook Login

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Microsoft Exchange Outlook 2010 Authentication Failed Mac Os

May 08, 2012 Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. I can't connect to my Exchange account in Outlook for Mac. If you are unable to connect to your Exchange account in Outlook for Mac, check these possible causes to get reconnected. Outlook for Mac supports accounts managed by Microsoft Exchange Server 2010 Service Pack 2 or later versions, or Office 365 for business. May 20, 2019  Describes a situation in which you are prompted for credentials in Outlook for Mac when Digest Authentication is enabled. This issue occurs in Outlook 2016 for Mac and Outlook for Mac 2011. You are running Microsoft Outlook 2016 for Mac or Outlook for Mac 2011 connecting to a mailbox on a server that is running Microsoft Exchange Server. Apr 24, 2014  Hi everyone, I recently installed a 2010 Exchange server to replace a 2003 Exchange server. All existing mailboxes are moved to Exchange 2010, and the old server is shut off. All users that existed before that can connect using Outlook 2010. I was using AD Users and Computers to create new AD. Is the account's logon name the same as the email. Jan 25, 2017  Have you experienced on MAC that Outlook Exchange server constantly shows you 'Authentication failed' for OutlookOffice365? Here is work around to fix Outlook Exchange.

Symptoms

In Microsoft Outlook 2016 for Mac, you are repeatedly prompted for authentication while you're connected to your Office 365 account.

Cause

This issue occurs because of the presence of duplicate tokens in the keychain.

Microsoft Exchange Outlook 2010 Authentication Failed Macbook Pro

Resolution

To resolve this issue in Outlook 2016 for Mac, install the February 2017 Outlook update (version 15.31.0) from the following Office website:

Microsoft Exchange Outlook 2010 Authentication Failed Mac Os

Workaround

Office 365 Outlook Login

To work around this issue, delete any cached passwords for your account, and also delete any modern authentication tokens from the keychain. To do this, follow these steps.

Note

These steps affect all Office applications that use modern authentication.

1. Quit Outlook and all other Office applications.

2. Start Keychain Access by using one of the following methods:

   • Select the Finder application, click Utilities on the Go menu, and then double-click Keychain Access.
   • In Spotlight Search, type Keychain Access, and then double-click Keychain Access in the search results.

3. In the search field in Keychain Access, enter Exchange.

4. In the search results, select each item to view the Account that's listed at the top, and then press Delete. Download microsoft access mac os x 8. Repeat this step to delete all items for your Exchange account.

5. In the search field, enter adal.

6. Select all items whose type is MicrosoftOffice15_2_Data:ADAL:<GUID>, and then press Delete.

7. In the search field, enter office.

8. Select the items that are named Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then press Delete.

9. Quit Keychain Access.

   Note

   When you start Outlook, you are prompted to authenticate.