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Thunderbird Doesn't Authenticate Yahoo, but Yahoo Confirms Access

John Larson

For the past 3-4 days, I am unable to successfully add my Yahoo New Mail account to Thunderbird.

The app says it cannot authenticate my account, but Yahoo confirms Thunderbird's access.

I'm using Thunderbird Version 155.0.1 (64-bit). I reinstalled it after cleaning the installation of Windows 11 25H2 a few days ago.

Please help. I need to move all my Gmail messages to Yahoo, and Thunderbird is the only option I have.

Thank you in advance!

For the past 3-4 days, I am unable to successfully add my Yahoo New Mail account to Thunderbird. The app says it cannot authenticate my account, but Yahoo confirms Thunderbird's access. I'm using Thunderbird Version 155.0.1 (64-bit). I reinstalled it after cleaning the installation of Windows 11 25H2 a few days ago. Please help. I need to move all my Gmail messages to Yahoo, and Thunderbird is the only option I have. Thank you in advance!

All Replies (1)

Please note: I get codes in Yahoo New Mail, but there is no place to enter them in Thunderbird or on Yahoo's login page.

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