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Login failed. authentication failed to server imap.mail.yahoo.com

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  • Letzte Antwort von raypackard

raypackard
raypackard
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Continuation of my prior post: https://support.mozilla.org/en-US/questions/1516342

Thunderbird has a routine problem with being unable to log into various mail servers. I have four accounts and they all seem to share this problem.

Most recent update: I've tested this in Windows Safe Mode, and the problem has not appeared. Since I can't do any useful work in Safe Mode, it's hard to give it a thorough test, but so far so good. Also, I have removed AVG antivirus because it was redundant. I have seen no improvement since it was removed.

Can this problem be resolved?

Continuation of my prior post: https://support.mozilla.org/en-US/questions/1516342 Thunderbird has a routine problem with being unable to log into various mail servers. I have four accounts and they all seem to share this problem. Most recent update: I've tested this in Windows Safe Mode, and the problem has not appeared. Since I can't do any useful work in Safe Mode, it's hard to give it a thorough test, but so far so good. Also, I have removed AVG antivirus because it was redundant. I have seen no improvement since it was removed. Can this problem be resolved?

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christ1
christ1
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I have removed AVG antivirus because it was redundant.

So what AV software are you using now?

raypackard
raypackard Fragesteller
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Windows Defender

christ1
christ1
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Try to start Windows 10 in safe mode with networking enabled.

Does the problem go away?

Windows safe mode disables anti-virus software. This is a troubleshooting step, not a solution.

raypackard
raypackard Fragesteller
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I tried it in safe mode and didn't see the problem.

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