Forum notifications get marked by spam filter

  • Hi forum admins,
    it's rather annoying than problematic but when I receive notification about personal message or any topic that I am watching my spam-filter reports:
    X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "MIME-Version"

    Indeed in headers we have "Mime-Version: 1.0" two times.

    Is it fixable?

  • That's crafted by SMF I presume, we have the latest stable version. It's open source, if you find a fix let me know.

  • In file Subs-post.php, function sendmail().

    starting at line 670

    --		$mail_result = $mail_result && smtp_mail($to_array, $subject, $message, $send_html ? $headers : "Mime-Version: 1.0" . $line_break . $headers);
    ++		$mail_result = $mail_result && smtp_mail($to_array, $subject, $message, $headers);
    	// Everything go smoothly?
    	return $mail_result;

    !attention! I did not test it but looks like this is the line causing problem.

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