[Mailman-Users] Many users unsubscribed at once (not by me)

[Larry Kuenning]

On 12/13/2015 5:14 AM, Hal wrote:

> Seeing that 17 out of those 18 unsubscribed messages were sent from
> Hotmail I can only assume the above was what happened. [etc]

This sounds as if Hotmail has joined the villainous club formerly 
composed only of Yahoo and AOL, publishing a DMARC policy of "p=reject". 
  Can anyone else confirm that this has happened?

(Despite all the work Mark has put into updating Mailman 2.1.x to deal 
automatically with the DMARC problem, I'm still handling it by putting 
Yahoo and AOL users on moderation and manually wrapping their posts.  I 
do this because I'm not sure I can successfully upgrade Mailman on a 
Plesk system that I don't really understand; and it's feasible because I 
have only two very low-volume lists.  I guess I now have to do the same 
with Hotmail users?)

-- 
Larry Kuenning
larry at qhpress.org