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<p class="MsoNormal"><span style="color:#1F497D">That’s because Windows determines file types based on the extension. Outlook sees .dll so figures “hmm, must be true”. Linux uses the file command to determine what type of file it is, so recognizes that it
isn’t really a .dll.<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">MailScanner blocks on both filetype and filename – just add a new line in filename.rules.conf and you’re set. I’d copy an existing line and edit to suit.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">...Kevin<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">Kevin Miller<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Network/email Administrator, CBJ MIS Dept.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">155 South Seward Street<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Juneau, Alaska 99801<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Phone: (907) 586-0242, Fax: (907) 586-4500 Registered Linux User No: 307357<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> MailScanner [mailto:mailscanner-bounces@lists.mailscanner.info]
<b>On Behalf Of </b>Pieter Goris<br>
<b>Sent:</b> Friday, February 05, 2016 5:13 AM<br>
<b>To:</b> mailscanner@lists.mailscanner.info<br>
<b>Subject:</b> RE: Blocking custom file extension is not working<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="NL-BE" style="color:#1F497D">Andrew,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">But the file is shown in outlook as a .dll<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">So is there a way to block this?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="NL-BE" style="color:#1F497D;mso-fareast-language:NL-BE">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="color:#1F497D;mso-fareast-language:NL-BE">Pieter Goris<o:p></o:p></span></p>
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