Re: Dadamail Bridge and DMARC

 
From: "OCO Admin p.p. Dada Mail Developers" <justin@PROTECTED>
Date: May 5th 2014

On 14-04-09 10:29 PM, OCO Admin wrote: >

On 14-04-08 10:23 PM, Justin J wrote: >

Yeah, Yahoo just basically broke the Internet,

http://www itworld com/security/413581/yahoo-email-anti-spoofing-policy-breaks-mailing-lists

http://www ietf org/mail-archive/web/ietf/current/msg87153 html

Hopefully, they'll figure out how foolish they are

You may want to think about using, "p p mode" in Bridge - came out around v6 8 It was initially put in, so that you could run a mailing list with Amazon SES - you need to authenticate all mail senders w/SES, which is unrealistic for a discussion mailing list

It may work in your case as well, since your member's yahoo addresses won't be in the From: header at all, so the DMARC stuff shouldn't be triggered

Yes that sounds exactly like what I was looking for I will try to upgrade soon and let you know if it solves the problem Yahoo is just the first to set the 100% reject policy I anticipate others will follow Best figure it out now and deal with it

A follow up for those who may be interested I upgraded to 7 0 1 and did a quick test using a private list with a yahoo com and a gmail com subscriber Without the "on behalf of" feature, emails were rejected by both yahoo com and gmail com With the feature enabled, the emails went through Thank you Justin for making the upgrade smooth and helping me find the proper option to solve this problem

Konrad

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