In other words, you would like to keep the HELO/EHLO validation test and allow Cox to fail it, yet accept mail from them?
Guy -- Guy Isabel <[EMAIL PROTECTED]> ----- Original Message ----- From: "RMilner" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, September 05, 2003 16:29 Subject: RE: [IMail Forum] Verify Mail From Address v8.2 > I'd love some advice on this one besides get a third party software. > > I would like to use the HELO/ELHO COMMANDS for Spam filtering. The problem > is, only 1 Legit Mail server has an issue with it. Unfortunately, it is Cox > Enterprises, which send about 25% of the email that comes in here. They are > like the 10th biggest Privately owned Company in America, owning most of Cox > Cable, Cox Television, Rehser Entertainment, Cox Radio, Manheim Auto > Auctions; Newspapers all over America, The Women's Soccer League, Direct > Mail (snail mail) businesses etc. I could care less about Cox. net which is > the mail users of Cox cable. > > Anyway, all their mail comes through the central server as: > > Received: from BATL0S04.cbi.cox.com [67.97.216.253] by mydomain.com with > ESMTP > (SMTPD32-8.02) id A70E3B0248; Thu, 04 Sep 2003 19:13:18 -0400 > Received: by BATL0S04 with Internet Mail Service (5.5.2653.19) > > The issue is their MIS people do not care about Spam and let everything pass > (many executives have had it with the Spam and I know several are > investigating moving divisions ton outside sources to control it, so this > might be end up being their undoing as well in the MIS Department, but > that's not going to happen tomorrow) so the MIS people see no reason to fix > this on their end: > > <<<snip>> > -----Original Message----- > From: (CCI-Atlanta) > Sent: Tuesday, September 02, 2003 3:25 PM > To: (CBI-Atlanta) > Cc: (CBI-Atlanta) > Subject: RE: Cox email fails reverse DNS lookup > > It looks like for some reason he is trying to reverse lookup the sending > domain - this is batl0s04.cbi.cox.com - however this is inside our firewall, > and he will not be able to look it up from outside (it is a 10. address) > > The actual sending IP is NAT'd and reverse DNS lookups fail on it. > > <<snip>> > > So of course, even though I have their mail server in white list (only works > in phrase checking) and Have the mail server in trusted domains, as it fails > HELO/ELHO, IMail doesn't care that it is trusted. > > 08:29 14:34 SMTPD(0007018C) [00000292] <mydomain.com> VALIDATION: (HELO) > mydomain.com performing DNS lookup for HELO domain BATL0S04.cbi.cox.com > 08:29 14:34 SMTPD(0007018C) [00000292] <mydomain.com> VALIDATION: (HELO) > mydomain.com received reply from DNS server for HELO domain > BATL0S04.cbi.cox.com > 08:29 14:34 SMTPD(0007018C) [00000292] <mydomaincom> VALIDATION: (HELO) > BATL0S04.cbi.cox.com domain failed active validation > 08:29 14:34 SMTP(04C80002) Got White List and Content Filter for > mydomain.com > 08:29 14:34 SMTP(04C80002) [cox.com] in white list > > > So, anyone have any idea how to enable HELO/ELHO when the MIS people at the > other place don't care their routing/dns is bad and this very powerful tool > cannot be used because of arrogance of the sender's MIS? > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Kami Razvan > Sent: Friday, September 05, 2003 10:24 AM > To: [EMAIL PROTECTED] > Subject: RE: [IMail Forum] Verify Mail From Address v8.2 > > > Hi; > > We use it and it works amazingly well. We add an entry in the header and > evaluate the header later. > > Based on my experience no legit email has ever failed that test. > > Regards, > Kami > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Mike Biddle > Sent: Friday, September 05, 2003 9:53 AM > To: [EMAIL PROTECTED] > Subject: [IMail Forum] Verify Mail From Address v8.2 > > > Does anyone recommend enabling the Verify Mail From Address? Or Verify > HELO/EHLO? > > Mike > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
