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An error occurred while sending mail. The mail server responded: Spam detected by content scanner.

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  • 2 have this problem
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  • Last reply by david

vmarcantonio
vmarcantonio
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Hello Mozilla Support,

I am not able to send email. I receive the following message: An error occurred while sending mail. The mail server responded: Spam detected by content scanner.

I have been using Thunderbird for several months and haven't had a problem sending email until now. I am definitely not sending spam. I haven't made any changes to my account or server and it is not due to a firewall.

Please help.

Thank you, Victor

Hello Mozilla Support, I am not able to send email. I receive the following message: An error occurred while sending mail. The mail server responded: Spam detected by content scanner. I have been using Thunderbird for several months and haven't had a problem sending email until now. I am definitely not sending spam. I haven't made any changes to my account or server and it is not due to a firewall. Please help. Thank you, Victor

All Replies (1)

david
david
  • Top 10 Contributor
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Check content of message as sent to see if there is additional content, such as a sig attachment that some antivirus software insert.