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#Outlook continually prompts for password password#
#Outlook continually prompts for password windows#

Rename the value name as AlwaysUseMSOAuthForAutoDiscover and hit Enter.

At the location, right-click on the blank space on the right pane and then select New > DWORD (32-bit) Value.

Navigate or jump to the registry key path below: HKEY_CURRENT_USER\Software\Microsoft\Exchange.

In the Run dialog box, type regedit and hit Enter to open Registry Editor.

#Outlook continually prompts for password windows#

Press Windows key + R to invoke the Run dialog.Since this is a registry operation, it is recommended that you back up the registry or create a system restore point as necessary precautionary measures. To resolve this issue, you need to create AlwaysUseMSOAuthForAutoDiscover registry key to force Outlook to use the newer authentication method for web services, such as EWS and Autodiscover.

#Outlook continually prompts for password password#

Outlook prompts for password when Modern Authentication is enabled But the authentication schemes don’t include Modern Authentication. This issue is triggered because Outlook limits its choices of authentication schemes to schemes that are supported by RPC. Scenario 2: You migrate your mailbox to Office 365 from an Exchange server that Outlook connects to by using RPC.Scenario 1: Microsoft Outlook connects to your primary mailbox in an on-premises Exchange server using Remote Procedure Call (RPC), and it also connects to another mailbox that’s located in Office 365.This issue applies to Outlook, Exchange Online, and Outlook for Microsoft 365.īased on the two scenarios listed below, you’re prompted for credentials, and Outlook doesn’t use Modern Authentication to connect to Office 365 – after you enter your credentials, they’re transmitted to Office 365 instead of to a token. In this post, we will look at why Outlook prompts for passwords when Modern Authentication is enabled, and as well as provide the solution to remediate this issue. Modern Authentication is a method of identity management that offers more secure user authentication and authorization.