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

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

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)

more options

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