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Pastimes : Mozilla: Firefox and Thunderbird Discussion ...
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From: Ken Adams9/24/2020 5:12:27 PM
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Using Thunderbird for email for years. Recently I can't send any more. Get this error message:

An error occurred. The mail server responded 5.1.0 Authentication required. Please verify that your email address is correct in your account settings and try again.

Everything in Account Settings appears to be correct. Even reentered all of it to be certain. Still no go.

Ideas appreciated. Many thanks.
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