We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

TB doesn't recognize my password. Changed my msn password but TB still refuses to accept it.

more options

Suddenly TB stopped accepting my password. One thread suggested changing my account password at msn. I tried that but when I enter the correct msn password I get the following error. "Sending of password for user odehart_5@msn.com did not succeed. Mail server pop3.live.com responded: Authentication failure: unknown user name or bad password. [Error="ProxyNotAuthenticated" AuthResult=0 Proxy=BY2PR15MB0456.namprd15.prod.outlook.com:1995:SSL]" I can access mail in Outlook but not in TB. If it helps I've also had trouble with TB not deleting emails from the server.

Suddenly TB stopped accepting my password. One thread suggested changing my account password at msn. I tried that but when I enter the correct msn password I get the following error. "Sending of password for user odehart_5@msn.com did not succeed. Mail server pop3.live.com responded: Authentication failure: unknown user name or bad password. [Error="ProxyNotAuthenticated" AuthResult=0 Proxy=BY2PR15MB0456.namprd15.prod.outlook.com:1995:SSL]" I can access mail in Outlook but not in TB. If it helps I've also had trouble with TB not deleting emails from the server.

Chosen solution

Go to the Microsoft site and turn POP access back on. Their new trick is to disable it.

Read this answer in context 👍 2

All Replies (1)

more options

Chosen Solution

Go to the Microsoft site and turn POP access back on. Their new trick is to disable it.