[INDOLOGY] Fwd: Yahoo's Blunder Impacts Mailing Lists Worldwide

[Jean-Luc Chevillard]

Dear Dominik,

thanks for the information.

That explains why, yesterday, as the OWNER of the mailing list called 
CTAMIL (hosted by one CNRS server), I received an automatic message for 
which the subject line was:

**********************************************
"WARNING: bounce rate too high in list ctamil"
**********************************************

The message said

**********************************************
Bounce rate in list ctamil is 48.2.

You should delete bouncing subscribers
**********************************************

I did not delete any subscriber
but I immediately started to reset
the error level of 48% of the list members :-(

Each one of them had ONE BOUNCE.

After that, I crossed my fingers, hoping not to have to do it again :-)

I am glad to know there was a REASON

Cheers

-- Jean-Luc



On 10/04/2014 20:28, Dominik Wujastyk wrote:
> Dear colleagues,
>
> The INDOLOGY forum runs on software called Mailman.  It seems that a
> potential pro​blem has recently arisen that affects Yahoo mail users.
>   See the message below.
>
> We are not acting on this information immediately, but please be alert
> for yahoo-related problems, and inform the INDOLOGY committee
> <indology-owner at list.indology.info
> <mailto:indology-owner at list.indology.info>> if you see a problem.
>
> Best,
> Dominik Wujastyk
> INDOLOGY committee
>
>
>
> ---------- Forwarded message ----------
> Date: 10 April 2014 20:05
> Subject: Yahoo's Blunder Impacts Mailing Lists Worldwide
>
> Dear Client:
>
> Yahoo initiated a terrible policy change to their mail servers recently
> that impacts every single mailing list software in use, not just
> Mailman. If any Yahoo.com user posts to your list, they will cause those
> list members whose ISP/ESP provider is using DMARC (Hotmail, Gmail,
> Bellsouth, etc) to bounce the poster's message which can in turn cause
> the list to remove these members from the list for excessive
> bounces. The problem is with Yahoo. You can read more about it at:
>
> http://www.pcworld.com/article/2141120/yahoo-email-antispoofing-policy-breaks-mailing-lists.html
>
> https://wordtothewise.com/2014/04/brief-dmarc-primer/
>
> We recommend the following:
>
> 1. Resubscribing those list members that were recently removed.
>
> 2. Prevent any Yahoo.com subscriber from posting to your list until they
> subscribe with another non-Yahoo email address. There is no telling when
> Yahoo will fix this or if they ever will.
>
> Again this issue only affect those lists where *Yahoo.com* users are
> allowed to post to the list.
>
>
>
>
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