[Mailman-Users] Mailman postings deferred by Yahoo

Brad Knowles brad at shub-internet.org
Thu Feb 21 06:20:39 CET 2008

On 2/21/08, Stephen J. Turnbull wrote:

>  If you're in a hosted environment, you might think about asking your
>  host to implement domain keys and/or PGP-signing your mail.  (Mailman
>  is (was?) not friendly to domain keys of non-owner posters, but in the
>  case of an announcement list having the host sign the post should work
>  fine.)

Using PGP is not going to help, but DomainKeys may.  The 
administrator of the mail server in question could also sign up for 
the Yahoo! "feedback loop" mechanism (see 

I've recently started working at the University of Texas at Austin, 
and it looks like I'm going to be doing some of their postmaster 
work.  I've been trying to get our mail servers signed up for various 
feedback loop mechanisms at major providers around the world, as well 
as subscribed to at least one or two "bonded sender" type programs. 
We're one of the largest public research Universities in the world 
with ~50,000 students and ~20,000 faculty and staff, and I can tell 
you from first hand experience that this is a painful process.

I filed our request with Yahoo!, but have not yet heard anything 
back.  We're on the AOL feedback loop, and getting quite a lot of 
reports about our users, many of which are hitting the "report as 
spam" button for messages that were forwarded to them from their 
mail.utexas.edu account, which means that AOL thinks we're sending 
them spam, when in fact we're just forwarding mail for a given user, 
which just happens to be spam.

We're also on the feedback loop for TimeWarner/RoadRunner, discovered 
that Gmail doesn't have any such service, and the people at 
NetZero/UnitedOnline really have no clue -- they don't get the fact 
that UT actually is their own ISP, we are our own phone company, we 
are our own power company, we are basically our own city and we 
provide all of our own various services, for a mid-size city 
community of about 70,000 people.

Oh, and Windows Live (you can't call it Hotmail anymore) requires 
that you have a registered Windows Live ID before you can sign up for 
their equivalent "Smart Network Data Services" program.

One problem with trying to get on all the various feedback loop 
processes, and obtaining service from a bonded sender program, is 
that they all have different requirements.  Some require SPF, some 
require Sender ID, some require DomainKeys, some require DKIM, some 
require that you sign up for service with 
ReturnPath/SenderScoreCertified, some require Habeas, some require 
GoodMail, and some require service with any of several other such 

No one can do all of these things, and many people find it difficult 
enough to do just one or two.  This is turning into a situation worse 
than TMDA, where the recipient site can't be bothered to do any real 
work themselves, so they force everyone else to do their work for 

Brad Knowles <brad at shub-internet.org>
LinkedIn Profile: <http://tinyurl.com/y8kpxu>

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