Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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cant reply to email call for auth need to uncheck dont know where to do

AnonymousUser

I get this after updating thunderbird and I have never checked for auth. Can not find where to uncheck....Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp-server.triad.rr.com. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider.

== updated to new

I get this after updating thunderbird and I have never checked for auth. Can not find where to uncheck....Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp-server.triad.rr.com. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider. == updated to new

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wheres your answer...nothing here

You are in the wrong forum for Thunderbird support.