Wouldn't you just upgrade? http://www.lsoft.com/news/2014/listserv160-2014a-us.asp
Not to mention you could easily patch your spoofing problem by relaying off a postfix server to do the header manipulation for compliance. Otherwise, DMARC is as good as SPF, solves the problem, but not respected and worthless. It's up to people like yahoo and gmail to 'bully' compliance, forcing some standardizations, just like they are doing with FCrDNS and IPv6.... -Jake From: "Larry Finch via dmarc-discuss" <dmarc-discuss@dmarc.org> To: "Nicolás via dmarc-discuss" <dmarc-discuss@dmarc.org> Sent: Wednesday, November 25, 2015 12:46:31 PM Subject: Re: [dmarc-discuss] Office 365 does not repect dmarc rejection policy!? On Nov 25, 2015, at 9:13 AM, Jacob Evans < dmarc-li...@jacobdevans.com > wrote: Larry, ....host gmail-smtp-in.l.google.com [2607:f8b0:400e:c01::1b] said: 550-5.7.1 Unauthenticated email from appalachiatech.com is not accepted due to 550-5.7.1 domain's DMARC policy. Please contact administrator of appalachiatech 550-5.7.1 .com domain if this was a legitimate mail. Please visit 550-5.7.1 https://support.google.com/mail/answer/2451690 to learn about DMARC 550 5.7.1 initia...... -Jake I manage 15 listserv mailing lists on a non-profit server site. We do not play games to make our outgoing messages DMARC compliant, because it would require updating our listserv license at a cost of $6,000, and our annual budget is $1,500. Mail from ISPs with a REJECT policy are delivered to our gmail addressees, but marked as potential spam. But once the user approves them future messages from a list are delivered without warnings. They are still not delivered to ISPs that respect the REJECT policy, of course. But Microsoft is not a problem either. We have solved any DMARC issues by not allowing users of ISPs with REJECT policies to post directly, although occasionally one gets through. Instead, a moderator intercepts the message and reposts it. And asks the sender to stop using Yahoo. Most have complied. Larry -- Larry Finch finc...@portadmiral.org _______________________________________________ dmarc-discuss mailing list dmarc-discuss@dmarc.org http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
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