From: Neil Shepperd <nshepperd@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: Jonathan Morton <chromatix99@gmail.com>,
Dave Taht <dave.taht@gmail.com>,
cake@lists.bufferbloat.net
Subject: Re: [Cake] cake for net-next 4.8
Date: Fri, 30 Sep 2016 09:08:21 -0400 [thread overview]
Message-ID: <CAFnvbVOt-Ftrz3RoYT82dPdiEdn+5Bt+2-LSt0ann6x=9QSJ-g@mail.gmail.com> (raw)
In-Reply-To: <874m4xbyt4.fsf@toke.dk>
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Hmm, PTR record is there, so I guess setting up DKIM is indeed the most
likely culprit.
On 30 September 2016 at 04:02, Toke Høiland-Jørgensen <toke@toke.dk> wrote:
> Neil Shepperd <nshepperd@gmail.com> writes:
>
> > I think I have now accumulated enough spam/nonspam classified emails
> > to make a statistically signification observation: it seems like all
> > emails classified as spam from these lists were send from ipv6:
> >
> > SPF: PASS with IP 2600:3c03:0:0:f03c:91ff:fe61:86ce
> >
> > All emails from bufferbloat.net lists are failing DKIM (because of the
> > mailing list footer breaking the DKIM signature) which might be worth
> > fixing, and failing DMARC because all mailing lists fails DMARC
> > (however google does not have a strict DMARC policy so that shouldn't
> > matter, I hope).
> >
> > By the way, it's not just you, either. I have emails from others on
> > these lists in my spam folder.
> >
> > The distinguishing factor seems to be whether the email was sent from
> > the lists.bufferbloat.net ipv6 address. Unless this address
> > corresponds to some kind of tunnel broker possibly also used by
> > spammers, I can only assume this is some kind of bug (after all, it
> > was spf validated so the address shouldn't matter at that point?).
>
> Indeed, gmail requires extra measures for IPv6:
> https://support.google.com/mail/answer/81126 (scroll down to "Additional
> guidelines for IPv6").
>
> Fixing DKIM might be worthwhile :)
>
> -Toke
>
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next prev parent reply other threads:[~2016-09-30 13:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-25 18:30 Dave Taht
2016-09-27 14:38 ` Jonathan Morton
2016-09-27 16:04 ` Dave Taht
2016-09-27 16:13 ` Jonathan Morton
2016-09-29 23:22 ` Neil Shepperd
2016-09-30 8:02 ` Toke Høiland-Jørgensen
2016-09-30 13:08 ` Neil Shepperd [this message]
2016-09-30 19:42 ` Dave Täht
2016-09-30 20:37 ` Neil Shepperd
2016-09-30 21:10 ` Dave Täht
2016-10-03 21:17 ` Neil Shepperd
2016-10-04 6:33 ` Henning Rogge
2016-10-04 16:09 ` Dave Täht
2016-10-20 5:56 ` Neil Shepperd
2016-09-27 17:52 ` Jonathan Morton
2016-09-27 18:18 ` Dave Taht
2016-09-27 18:56 ` Jonathan Morton
2016-09-27 19:29 ` Dave Taht
2016-09-27 19:54 ` Jonathan Morton
2016-09-28 23:26 ` Dave Taht
2016-09-28 23:34 ` Jonathan Morton
2016-09-29 20:43 ` Andrew Shewmaker
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