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Error Message when attempting to send email from Thunderbird.

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SuMo Bot
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For approximately 10 days i have been receiving the following message when attempting to send an email message from Thunderbird:

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-077060.sys.comcast.net resomta-a1p-077060.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.

I do not receive this message when I send directly out of Xfinity. I have temporarily disabled my anti-virus (Bitdefender) but the error message still occured. I also did a full system scan but no virus was found. The email server settings appear to be correct as well.

Suggestions? Thanks in advance for your help.

For approximately 10 days i have been receiving the following message when attempting to send an email message from Thunderbird: Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-077060.sys.comcast.net resomta-a1p-077060.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available. I do not receive this message when I send directly out of Xfinity. I have temporarily disabled my anti-virus (Bitdefender) but the error message still occured. I also did a full system scan but no virus was found. The email server settings appear to be correct as well. Suggestions? Thanks in advance for your help.

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christ1
christ1
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The error message is from your email provider's server. Have you checked with them?

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