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Error message: Sending of password for user did not succeed. Mail server pop.earthlink.net responded: Internal error

Thunderbird Send and receive email
DK
DK

I'm running Thunderbird v.115.10.1 on a Mac. All of a sudden, I am getting the following error message when I open up TB or check email: "Sending of password for user did not succeed. Mail server pop.earthlink.net responded: Internal error”. If I exit TB and log back in, I usually don't get the error message again and TB downloads incoming emails. I have no problem sending emails. It is still usable, but annoying because it happens 75% of the time. Any help is greatly appreciated. Thank you. -Dave

I'm running Thunderbird v.115.10.1 on a Mac. All of a sudden, I am getting the following error message when I open up TB or check email: "Sending of password for user did not succeed. Mail server pop.earthlink.net responded: Internal error”. If I exit TB and log back in, I usually don't get the error message again and TB downloads incoming emails. I have no problem sending emails. It is still usable, but annoying because it happens 75% of the time. Any help is greatly appreciated. Thank you. -Dave

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