List Server compatibility with Yahoo's new DMARC policy

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wekelly
Posts: 11
Joined: Fri Aug 24, 2012 8:57 am

List Server compatibility with Yahoo's new DMARC policy

Post by wekelly » Mon May 05, 2014 4:17 pm

Problem

For the last 18 months, I have successfully used MailEnable's List Server feature. However, over the last few weeks, email sent from Yahoo email addresses has not been delivered to other Yahoo email addresses. Additionally, email sent from Yahoo email addresses is consistently sorted to the SPAM box of my Gmail account.

Additional detail

The problem can be seen in MailEnable's SMTP logs. For example:

Code: Select all

554 5.7.9 Message not accepted for policy reasons.  See http://postmaster.yahoo.com/errors/postmaster-28.html
Apparently, the problem relates to a recent change that Yahoo made to their DMARC policy, as described in detail here:

http://www.ietf.org/mail-archive/web/ie ... 87153.html

Yahoo's response is described here:

http://yahoomail.tumblr.com/post/824269 ... senders-do

...where it says:
If you are a mailing list owner, what should you do?

Mailing lists are a special case of sending mail on behalf of individuals. The most common option is to use the mailing list’s address instead of the sender’s on the From: line. This will change the reply behavior. Some mailing lists also choose to act as pure forwarders and resend the mail without breaking DKIM signatures. As of this publication, no common mailing list packages provide straightforward configuration options that produce DMARC compatibility, although Mailman has relevant features starting in 2.1.16. If you are a developer of mailing list software and would like help adding features to allow participants from domains with DMARC p=reject, please contact us at dmarc-help@yahoo-inc.com.
Question

Is there anyway to configure my MailEnable List Server and/or Lists to be compatible with Yahoo's new DMARC policy?

wekelly
Posts: 11
Joined: Fri Aug 24, 2012 8:57 am

Re: List Server compatibility with Yahoo's new DMARC policy

Post by wekelly » Mon May 05, 2014 4:51 pm

FYI... AOL has made the same change:

http://postmaster-blog.aol.com/2014/04/ ... to-reject/

Comcast says the solution is not use AOL or Yahoo:

http://postmaster.comcast.net/dmarcupdate.html

wekelly
Posts: 11
Joined: Fri Aug 24, 2012 8:57 am

Re: List Server compatibility with Yahoo's new DMARC policy

Post by wekelly » Mon May 05, 2014 5:17 pm

Another relevant post...

http://onlinegroups.net/blog/2014/04/10 ... t-manager/

...describes how they solved the problem.

rawbert
Posts: 6
Joined: Mon Mar 25, 2013 4:53 pm

Re: List Server compatibility with Yahoo's new DMARC policy

Post by rawbert » Tue Jul 08, 2014 11:42 am

I have the same issue.. any solutions??

dashcraft
Posts: 6
Joined: Wed Oct 26, 2005 3:42 pm

Re: List Server compatibility with Yahoo's new DMARC policy

Post by dashcraft » Wed Aug 27, 2014 2:33 pm

Has anyone found a solution that doesn't include replacing MailEnable?

dunc
Posts: 94
Joined: Mon Oct 24, 2005 11:05 pm
Location: Colorado, USA

Re: List Server compatibility with Yahoo's new DMARC policy

Post by dunc » Tue Sep 30, 2014 1:27 am

AOL has joined the strict DMARC enforcement ranks. This means that any ME mailbox that redirects to an AOL account will simply bounce all emails from another AOL user. And Yahoo. A solution is desperately needed.

wekelly
Posts: 11
Joined: Fri Aug 24, 2012 8:57 am

Re: List Server compatibility with Yahoo's new DMARC policy

Post by wekelly » Thu Jan 29, 2015 3:28 pm

According to this other post, there is now a fix:

http://forum.mailenable.com/viewtopic.php?f=5&t=27935
The send from option to change both envelope and header "from" address is to cater for the new DMARC checks that yahoo and other large hosting providers now check for.

dunc
Posts: 94
Joined: Mon Oct 24, 2005 11:05 pm
Location: Colorado, USA

Re: List Server compatibility with Yahoo's new DMARC policy

Post by dunc » Fri Feb 13, 2015 8:14 pm

I just tried this new option. When I have an x@aol.com subscriber, they now receive messages sent by an "outside" subscriber. However if they attempt to send a message to the list, they will not receive a copy. An error is generated seen in the NDR:
Reason: 521 5.2.1 : AOL will not accept delivery of this message.

This is using the new "change header and envelope" option. So I don't think DMARC is handled.

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