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<p class="MsoNormal">Dear Amavis-users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Today we found some strange situation for incoming email when enabled blocking “.exe” in zip file extension on amavisd.conf as below configuration.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">### amavisd.conf for BLOCKED ANYWHERE<o:p></o:p></p>
<p class="MsoNormal"># qr'^UNDECIPHERABLE$', # is or contains any undecipherable components<o:p></o:p></p>
<p class="MsoNormal">qr'^\.(exe|exe-ms|dll)$', # banned file(1) types, rudimentary<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Now , We always found banned email from incoming email send from
<b>Lotus note</b> MTA .<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">And Sender address try to send attach file “.xls” and normal email with plain text after that our amavisd detect both email as “BANNED” type.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">#maillog message show<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">BANNED, message contains text/plain,.exe<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">(554 5.7.0 Bounce, id=30228-09-2 - BANNED: text/plain,.exe)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">#Detail information application<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">FreeBSD 9 Amd64 bit<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Postfix + amavisd-new-2.8.0_2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Have you ever found this kind of issue and how to solved problem for this issue ?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Please do not hesitate to contact us , If you have any questions .<br>
Best Regards.<br>
################################<br>
# Watthanachai KEKHUA (Golf)<br>
# Operation And Maintenance Department (OAM)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"># Tel: 02-2367227 Ext. 1624<br>
# NTT Communications (Thailand) Co., Ltd.<br>
#################################<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">DISCLAIMER :<o:p></o:p></p>
<p class="MsoNormal">This email is for the use of the intended recipient(s) only.
<o:p></o:p></p>
<p class="MsoNormal">If you have received this email in error, please notify the sender immediately and then delete it.
<o:p></o:p></p>
<p class="MsoNormal">If you are not the intended recipient, you must not keep, use, disclose, copy or distribute this email without the author's prior permission.
<o:p></o:p></p>
<p class="MsoNormal">We have taken precautions to minimise the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message.<o:p></o:p></p>
<p class="MsoNormal">We cannot accept liability for any loss or damage caused by software viruses.<o:p></o:p></p>
<p class="MsoNormal">The information contained in this communication may be confidential and may be subject to the attorney-client privilege.
<o:p></o:p></p>
<p class="MsoNormal">If you are the intended recipient and you do not wish to receive similar electronic messages from us in future then please respond to the sender to this effect.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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