Fix Outlook Email Login Fails After Microsoft Exchange Password Change
Question details
The user successfully updated their expired Microsoft Exchange password, and while the new password works for Microsoft Teams, it is rejected by their email client, preventing access to emails.
- Product
- Microsoft Exchange
- Device & OS
- not provided
- Scenario
- Attempting to log into an email client following a mandatory Microsoft Exchange password update.
- Observed behavior
- The email client fails to authenticate and repeatedly rejects the login attempt, despite the new password working perfectly for other services like Microsoft Teams.
Ensure you have a stable internet connection and wait at least 15 to 30 minutes after changing your password to allow the Microsoft Exchange server to synchronize the new credentials across all your apps.
Clear Saved Passwords in Windows Credential Manager
Old, cached passwords often conflict with newly updated Exchange passwords. Clearing them forces the email client to prompt for the new password.
When you update your Microsoft Exchange password, Windows does not always automatically update the saved login data for your email clients. This causes the application to continuously attempt to log in using the old, expired credentials stored in the Credential Manager.
Click on the Windows Start menu, type Credential Manager in the search bar, and press Enter to open the application.
Click on the Windows Credentials tab to view the list of saved login details for your computer and applications.
Scroll down to the Generic Credentials section. Look for any entries containing MicrosoftOffice, Outlook, or Exchange. Click the downward arrow next to the relevant entry to expand it, then click Remove and confirm your choice.
Restart your email client. When the authentication prompt appears, enter your newly updated Microsoft Exchange password.
Verify Email Client Settings and Trigger a Reconnect
Sometimes the email client application gets stuck in an offline state and requires a manual refresh to trigger the new authentication prompt.
Contact Your Exchange Administrator
If local troubleshooting does not resolve the issue, the problem might reside on the server side due to an account synchronization delay.
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Frequently Asked Questions
Why does my new Exchange password work for Teams but not Outlook?
Microsoft Teams and Outlook use different authentication tokens and methods. Teams often updates its token much faster via modern authentication, whereas Outlook might still be trying to use an old password cached in your computer's Credential Manager, or there may be a delay in server synchronization for Exchange email services.
How long does it take for a Microsoft Exchange password change to sync?
Typically, a password change syncs across all Microsoft 365 services within 15 to 30 minutes. However, depending on network conditions, server load, and your organization's Active Directory synchronization configurations, it can sometimes take up to a few hours.
Will removing cached credentials delete my saved emails?
No, removing cached credentials from the Windows Credential Manager only deletes the saved password file. Your actual emails, contacts, and calendar events are safely stored on the remote Exchange server and will synchronize normally once you log in with the correct new password.
