Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

I have been using Thunderbird for many years for my hotmail account. Today I can not receive messages. No changes to account

  • 1 reply
  • 2 have this problem
  • 17 views
  • Last reply by Matt

more options

I have been using Thunderbird for many years for my hotmail account. Today I can not receive messages. I get the following message... Sending of password for user tlpaulsen@hotmail.com did not succeed. Mail server pop-mail.outlook.com responded: Authentication failure: unknown user name or bad password. [Error="ProxyNotAuthenticated" AuthResult=0 Proxy=CO2PR04MB2264.namprd04.prod.outlook.com:1995:SSL]

Not sure what to try.

I have been using Thunderbird for many years for my hotmail account. Today I can not receive messages. I get the following message... Sending of password for user tlpaulsen@hotmail.com did not succeed. Mail server pop-mail.outlook.com responded: Authentication failure: unknown user name or bad password. [Error="ProxyNotAuthenticated" AuthResult=0 Proxy=CO2PR04MB2264.namprd04.prod.outlook.com:1995:SSL] Not sure what to try.

All Replies (1)

more options