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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Got this message: "Authentication failure while connecting to server imap.mail.yahoo.com"

  • 1 reply
  • 0 have this problem
  • 6 views
  • Last reply by david

Vir
Vir
more options

I just installed Mozilla Thunderbird in my Windows 10 PC. When I clicked on the Thunderbird icon on the screen, I saw it kind of downloaded my e-mail from Yahoo Mail. Then I got this message: " "Authentication failure while connecting to server imap.mail.yahoo.com" How can this problem be resolved?

I just installed Mozilla Thunderbird in my Windows 10 PC. When I clicked on the Thunderbird icon on the screen, I saw it kind of downloaded my e-mail from Yahoo Mail. Then I got this message: " "Authentication failure while connecting to server imap.mail.yahoo.com" How can this problem be resolved?

All Replies (1)

david
david
  • Top 10 Contributor
more options

Yahoo requires a different password when using an email client. This URL may assist: https://help.yahoo.com/kb/SLN15241.html