Re: DMARC from the perspective of the listadmin of a bunch of SMALL community lists

Miles Fidelman <mfidelman@meetinghouse.net> Sat, 12 April 2014 23:10 UTC

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Date: Sat, 12 Apr 2014 19:10:01 -0400
From: Miles Fidelman <mfidelman@meetinghouse.net>
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Subject: Re: DMARC from the perspective of the listadmin of a bunch of SMALL community lists
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Theodore Ts'o wrote:
> On Sat, Apr 12, 2014 at 03:56:14PM -0400, Miles Fidelman wrote:
>> We (really I) support perhaps 2 dozen small email lists, for a bunch of
>> community groups (PTOs, churches, neighborhood groups) - mostly the legacy
>> of previously running a small hosting firm, and still having the machines
>> sitting in a data center.  The kinds of groups with lots of non-technical
>> users who have email accounts on Yahoo, hotmail, AOL, Comcast, and such.
>> The lists range in size from tiny (5 person boards of directors) to maybe
>> 1000 (high school parents).
> Why don't you just respond by sending an e-mail to each of the
> affected users, telling them that they will unfortunately no longer be
> able to participate in the mailing list due to the choices of their
> mail provider, and that if they want to continue to receiving e-mail,
> to consider setting up new e-mail account with some other provider
> such as gmail -- and then cc postmaster@yahoo.com on the message.
>
> That's how I plan to deal with things....
>
> 					- Ted

Well, it's certainly attractive, if time consuming.  2000 or so people, 
or 24 or so list messages, plus dealing with all the folks who ask me to 
personally unsubscribe one address, and add their new one.  Probably 
less painful to patch the list manager to re-write the From address of 
incoming mail (which is what seems to be where a lot of people are going).

As to them impact on Yahoo - I expect they'd ignore it.  On the other 
hand, I'm starting to wonder about suing them for damages and creating a 
public nuisance. :-)  [yes, I'm feeling a little vindictive right now.]

Sigh...

Miles

-- 
In theory, there is no difference between theory and practice.
In practice, there is.   .... Yogi Berra