Le lundi 13 février 2017 à 14:36 +0100, Michael Scherer a écrit : > Le lundi 13 février 2017 à 02:09 +0100, Michael Scherer a écrit : > > Le samedi 11 février 2017 à 01:51 +0100, Amye Scavarda a écrit : > > > Hey there, > > > Getting a few pings on 'I've been unsubscribed from gluster-users@' - and > > > my mailman-fu is pretty limited. > > > > > > Anyone noticed anything odd in the mailman install? This started on > > > Thursday, Feb 9 as far as I can tell. > > > > Hi, > > > > mailman processes are here, so could you provides a bit more information > > like "who did ping" (so we can start to see if there is a pattern, etc), > > or even better, direct people to contact the list and/or open a bug > > report so this can be tracked properly ? > > So, I did search more after reading all my emails, and the answer is > long but can be summarized by "yahoo and google suck, and we are in the > middle". > > It seems that someone used a yahoo email to post on gluster-users. So > far, so good, but Yahoo do have a specific DMARC policy that prevent > sending email from yahoo from a non yahoo server. It also break mailling > lists for provider who do respect DMARC policy: > https://thehackernews.com/2014/04/yahoos-new-dmarc-policy-destroys-every.html > > And among the ones that do strongly verify DMARC (instead of using it as > a indicator, since that's slightly less prone to breakage) is gmail, who > just block at the smtp level mail if the dmarc policy say so. > > > Usually, this is not a problem, since email just get dropped after a > while. > > But this time, my hypothesis is that the person who did post did send > enough to trigger a threshold in mailman to unsubscribe people (ie, more > than 5 bounces). So all the gmail subscribers got removed. > > But we have logs, so I am gonna resubscribe everybody. > > From here, we have several solutions: > - raise the bounce limit to 10. This doesn't fix the issue, but should > minimize it for the time being > > - make sure people who use yahoo email can't subscribe. If their email > provider break the list and can't work, we can't do much
So while I didn't unsubscribe anyone, i did contact the user to explain his options (especially the part where we can't do much on why 1/3 of the list do not get his email :/ ) -- Michael Scherer Sysadmin, Community Infrastructure and Platform, OSAS
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