<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I would be interested in seeing one of the blocked PDFs, send to me on direct email if it’s private.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I have seen reports that some SPAM filters block PDFs that do not start with the proper few characters. I don’t think we could produce a file that would do that ever, but if we have we should know.<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<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> Darren Munt [mailto:darrenm@ardex.com.au] <br><b>Sent:</b> Tuesday, December 10, 2013 10:04 PM<br><b>To:</b> 'kevin@renderx.com'; 'RenderX Community Support List'<br><b>Subject:</b> RE: [xep-support] Re: PDF attachments blocked as spam<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-AU style='color:#1F497D'>Yes I think it is a case of the tail wagging the dog. I just wanted to make sure it wasn’t something I was doing wrong. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> <a href="mailto:xep-support-bounces@renderx.com">xep-support-bounces@renderx.com</a> [<a href="mailto:xep-support-bounces@renderx.com">mailto:xep-support-bounces@renderx.com</a>] <b>On Behalf Of </b>Kevin Brown<br><b>Sent:</b> Wednesday, 11 December 2013 4:59 PM<br><b>To:</b> 'RenderX Community Support List'<br><b>Subject:</b> [xep-support] Re: PDF attachments blocked as spam<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Never heard of it. <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'>A PDF created by RenderX certainly has some repeatable characteristics and if they can map them great … like seeking the /Producer line.<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'>If they looked into a PDF compressed or not, they would see … (of course with your own version of software)<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'>/Producer (XEP 4.19 build 20110414)<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'>For instance.<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'>Or if they looked at the Metadata stream for the xmpmeta information, they would find:<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'><pdf:Producer>XEP 4.19 build 20110414</pdf:Producer><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'>Now, that issue is TOTALLY up to the company providing the overzealous checker of PDF files to determine what is a valid PDF file and what is not. If they have not “mapped” RenderX, sorry we cannot help you. Sounds like they probably think Adobe and Microsoft are the only two companies in the world that create PDFs…<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 Brown<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>RenderX<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> <a href="mailto:xep-support-bounces@renderx.com">xep-support-bounces@renderx.com</a> [<a href="mailto:xep-support-bounces@renderx.com">mailto:xep-support-bounces@renderx.com</a>] <b>On Behalf Of </b>Darren Munt<br><b>Sent:</b> Tuesday, December 10, 2013 9:31 PM<br><b>To:</b> <a href="mailto:xep-support@renderx.com">xep-support@renderx.com</a><br><b>Subject:</b> [xep-support] PDF attachments blocked as spam<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-AU>We’ve had a couple of users complain that PDFs that we produce using RenderX are being blocked in emails by MailMarshal. It’s the first I’ve heard of the issue but I wondered if what we have been told by one of the IT people from the client is accurate:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-AU>==<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU>The files attached did not contain a known finger print for Adobe PDF file type. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-AU>For example, if you created a .docx file in Microsoft Word and saved it, the document would contain a finger print in the Hexadecimal code of the file that identifies it as a Microsoft Word document. Our MailMarshal Spam Server (and presumably other Spam systems) check the finger print of every file received, to verify that the attachment is what is says it is. Another example would be… a .exe file would contain a .exe finger print, should the file be renamed to .zip, our Anti Spam system would block the attachment as it contained a .exe finger print.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU>==<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-AU>They say they had to add a new file type to the MailMarshal config. They did this by creating a new ‘finger print’ from the first couple of hundred bytes of the files, which they have observed don’t change, and subsequently files are accepted. The inference is that the PDFs we are creating are not in the format recognised by MailMarshal.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-AU>Is there some configuration we need to do that has been overlooked? <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-AU style='font-size:12.0pt;font-family:"Times New Roman","serif"'>!DSPAM:87,52a7f8b89851456241067! <o:p></o:p></span></p></div></body></html>