On Mon, Feb 13, 2017 at 7:50 AM, Michael Scherer <msche...@redhat.com> wrote:
> 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 > > > > _______________________________________________ > Gluster-infra mailing list > Gluster-infra@gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-infra > Much appreciated on the dig into this. I maintain that this is still a black art. - amye -- Amye Scavarda | a...@redhat.com | Gluster Community Lead
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