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Getting Authentication error message when trying to send emails.

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peterl561
peterl561
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This morning, I could send emails, then I downloaded a driver updater, the machine restarted, and I have been unable to send emails since. It comes up with this............................

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

This morning, I could send emails, then I downloaded a driver updater, the machine restarted, and I have been unable to send emails since. It comes up with this............................ " An error occurred while sending mail. The mail server responded: 5.1.0 Authentication required. Please verify that your email address is correct in your account settings and try again. "