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<p><tt>Ferry,</tt></p>
<p><tt>I am having trouble reproducing the issue on my end. I am
still looking into this. This is looking more like a failure to
spawn the child process and pipe the results back to the parent
process.</tt></p>
<p><tt>Error 13 on a pipe is "Permission Denied." This can be caused
for a variety of reasons. Filesystem permissions, mandatory
access control issues (i.e. SELinux or Apparmor), and kernel
level issues such as hitting an upper limit that is set too low
or a kernel bug.</tt></p>
<p><tt>What do you currently have for this setting in MailScanner?</tt></p>
<p><tt>"Ignore Denial Of Service"<br>
</tt></p>
<div class="moz-cite-prefix">On 6/29/20 3:47 AM, Ferry van Aesch via
MailScanner wrote:<br>
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<p class="MsoNormal"><span style="font-size:11.0pt">I’m still
trying to get my head around this. These failures genuinely
seem to be random. Amazon notifications for instance, very
standard layout, most come in perfectly fine and recently
one of them failed. I run it through the queue again and it
passes without failure. I’m a bit lost tbh.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span
style="color:black">Ferry van Aesch
<a class="moz-txt-link-rfc2396E" href="mailto:ferry@vanaesch.com"><ferry@vanaesch.com></a><br>
<b>Date: </b>Tuesday 16 June 2020 at 19:24<br>
<b>To: </b>MailScanner Discussion
<a class="moz-txt-link-rfc2396E" href="mailto:mailscanner@lists.mailscanner.info"><mailscanner@lists.mailscanner.info></a><br>
<b>Subject: </b>Re: HTML disarming died, status = 13</span><span
style="color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Shawn,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks for
getting back to me so quickly. Please see the sanitised
email attached. (I assume attaching works with the mailing
list?)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It’s not
happening with every message indeed; but it’s a reasonable
amount of the emails it processes. I just ran the original
message (cat message|sendmail -t) and it was delivered
without a problem.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks!</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ferry</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span
style="color:black">MailScanner
<a class="moz-txt-link-rfc2396E" href="mailto:mailscanner-bounces+ferry=vanaesch.com@lists.mailscanner.info"><mailscanner-bounces+ferry=vanaesch.com@lists.mailscanner.info></a>
on behalf of Shawn Iverson via MailScanner
<a class="moz-txt-link-rfc2396E" href="mailto:mailscanner@lists.mailscanner.info"><mailscanner@lists.mailscanner.info></a><br>
<b>Reply to: </b>MailScanner Discussion
<a class="moz-txt-link-rfc2396E" href="mailto:mailscanner@lists.mailscanner.info"><mailscanner@lists.mailscanner.info></a><br>
<b>Date: </b>Tuesday 16 June 2020 at 18:39<br>
<b>To: </b><a class="moz-txt-link-rfc2396E" href="mailto:mailscanner@lists.mailscanner.info"><font color="red"><b>MailScanner has detected a possible fraud attempt from "lists.mailscanner.info" claiming to be</b></font> "mailscanner@lists.mailscanner.info"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:mailscanner@lists.mailscanner.info"><mailscanner@lists.mailscanner.info></a><br>
<b>Cc: </b>Shawn Iverson
<a class="moz-txt-link-rfc2396E" href="mailto:shawniverson@summitgrid.com"><shawniverson@summitgrid.com></a><br>
<b>Subject: </b>Re: HTML disarming died, status = 13</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p>This message is by design, as long as you are not caught in a
loop and it is not happening with every message. There's
something in the HTML that killed the child spawned to perform
the disarming. Depending on the scenario, a sample of the
email (sanitized) might be helpful to isolate what is going on
here and improve the HTML Disarming code.<o:p></o:p></p>
<p>Shawn<o:p></o:p></p>
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<div class="moz-signature">-- <br>
<img src="http://mailserver.summitgrid.org/logo_text_sig.png"><br>
Shawn Iverson<br>
<a class="moz-txt-link-abbreviated" href="mailto:shawniverson@summitgrid.com">shawniverson@summitgrid.com</a><br>
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