olecoot Posted September 30, 2008 Report Share Posted September 30, 2008 Sirs: I have a customer that is giving me fits about VM to EM messages getting caught up in his spam filter. This server is version 22.214.171.12498 Linux and since upgrading to this version, I have had this problem. The customer is too pig headed to white list my relay server and demands that I change the email format. Is there a way for me to change the format of the date in the email header so that the spam filter will allow the messages to go through? I'll include some of the threads that have been exchanged. Pig headed customer: We did some additional research into the issue of the voice messages ending up blocked by the spam filter. The spam filter folks also looked at the header information in your messages. And in fact the date field is simply not formatted correctly. Here is the comment from the filter company: Reply from filter company: Yes, it appears that the voice mail provider is adding an invalid date header. This is adding a total of 5.6 points -- 1.7 for the incorrect format, plus 3.9 points because the incorrect format can't be parsed to arrive at a correct date, causing it to appear as if the Date: header postdates the receipt of the message. The date header they add is: Date: Mon, 2008 Sep 29 19:41:03 -0000 which is not in the correct format for use in an email header. The correct format would be: Date: Mon, 29 Sep 2008 19:41:03 -0000 You will need to contact your voicemail provider to have them fix the header. Test Message sent to myself: Microsoft Mail Internet Headers Version 2.0 Received: from mailserver.domain.net ([126.96.36.199]) by domain2.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 30 Sep 2008 11:04:23 -0500 Received: from localhost (pbx.domain3.com [66.1xx.xxx.xxx]) by mailserver.domain.net (8.13.8/8.13.8) with ESMTP id m8UG4IvC018042 for <email@example.com>; Tue, 30 Sep 2008 11:04:18 -0500 Message-Id: <200809301604.m8UG4IvC018042@mailserver.domain.net> From: "PBX-Voicemail-Server" <firstname.lastname@example.org> To: <email@example.com> Subject: Voicemail from Test 501 (501) to Test User 1 Date: Tue, 2008 Sep 30 15:53:41 -0000 <<<<<<<----------- This is where the pig headed customer's spam filter keeps the message from delivery. MIME-Version: 1.0 Content-Type: multipart/mixed;boundary="b-z76k2l5wjndkcnfmesnzhkomde" Return-Path: firstname.lastname@example.org X-OriginalArrivalTime: 30 Sep 2008 16:04:23.0541 (UTC) FILETIME=[34982A50:01C92316] X-TM-AS-Product-Ver: SMEX-188.8.131.521-5.500.1027-16188.005 X-TM-AS-Result: No--15.291400-5.000000-31 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No --b-z76k2l5wjndkcnfmesnzhkomde Content-Transfer-Encoding: base64 Content-Type: text/html;charset="utf-8" --b-z76k2l5wjndkcnfmesnzhkomde Content-Transfer-Encoding: base64 Content-Disposition: attachment;filename="msg273.wav" Content-Type: audio/wav;name="msg273.wav" --b-z76k2l5wjndkcnfmesnzhkomde-- Quote Link to comment Share on other sites More sharing options...
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