<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><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Just started testing the new version of Cisco Ironport 7.61 which is their first release that supports ipv6. We have it up and running and the AAAA record setup for one of our MX servers. Started receiving mail today via ipv6 with no issues so far. No surprise, got our first spam via ipv6 a few minutes after cutover <span style='font-family:Wingdings'>J</span>.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It will be interesting to see how Senderbase and other IP reputation systems deal with the larger address range of IPv6.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'>----<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'>Matthew Huff | 1 Manhattanville Rd<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'>Director of Operations | Purchase, NY 10577<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'>OTA Management LLC | Phone: 914-460-4039<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Courier New"'>aim: matthewbhuff | Fax: 914-460-4139<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>