This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Cannot log in from Yahoo.com

  • Akukho zimpendulo
  • 0 inale ngxaki
more options

My account was moved to Yahoo.com some time ago. Since then I have not been able to use Thunderbird. I get an error message "Sending of password for the user Sigma54... did not succeed. Mail server pop.mail.yahoo.com responded [SYS/TEMP] Server error. Please try again later". I have rechecked all my information several times. Seems to be accurate. I hate Yahoo and all their ads. Please help.

My account was moved to Yahoo.com some time ago. Since then I have not been able to use Thunderbird. I get an error message "Sending of password for the user Sigma54... did not succeed. Mail server pop.mail.yahoo.com responded [SYS/TEMP] Server error. Please try again later". I have rechecked all my information several times. Seems to be accurate. I hate Yahoo and all their ads. Please help.

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.