[170959] in North American Network Operators' Group
Re: DMARC -> CERT?
daemon@ATHENA.MIT.EDU (Laszlo Hanyecz)
Mon Apr 14 13:26:10 2014
From: Laszlo Hanyecz <laszlo@heliacal.net>
In-Reply-To: <534C1562.2080408@meetinghouse.net>
Date: Mon, 14 Apr 2014 17:25:46 +0000
To: Miles Fidelman <mfidelman@meetinghouse.net>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
By their statement it's obvious that yahoo doesn't care about what they =
broke. It's unfortunate that email has become so centralized that one =
entity can cause so much 'trouble'. Maybe it's a good opportunity to =
encourage the affected mailing list subscribers to use their own domains =
for email, and host it themselves if possible.
-Laszlo
On Apr 14, 2014, at 5:05 PM, Miles Fidelman <mfidelman@meetinghouse.net> =
wrote:
> Isn't it the other way around? They don't want their users to be able =
to send to mailing lists. They receive traffic from the lists just =
fine. Their policy considers only effects mail originating from their =
users. Yahoo subscribers can receive messages form nanog just fine, but =
they can't send to it.
>=20
> Miles
>=20
> Laszlo Hanyecz wrote:
>> I don't see what the big deal is here. They don't want your messages =
and they made that clear. Their policy considers these messages spam. =
If you really want to get your mailing list messages through, then you =
need to evade their filters just like every other spammer has to.
>>=20
>> -Laszlo
>>=20
>>=20
>> On Apr 14, 2014, at 4:32 PM, Miles Fidelman =
<mfidelman@meetinghouse.net> wrote:
>>=20
>>> Well... how about this, from Yahoo's own posting:
>>> We know there are about 30,000 affected email sending services, but =
we also know that the change needed to support our new DMARC policy is =
important and not terribly difficult to implement.
>>>=20
>>> To me - this sure looks, smells, and quacks like a denial-of-service =
attack against a system I operate, and the subscriber to the lists that =
I support -- somewhat akin to exploding a bomb in a public square, and =
then taking credit for it.
>>>=20
>>> Miles Fidelman
>>>=20
>>> --=20
>>> In theory, there is no difference between theory and practice.
>>> In practice, there is. .... Yogi Berra
>>>=20
>>>=20
>=20
>=20
> --=20
> In theory, there is no difference between theory and practice.
> In practice, there is. .... Yogi Berra
>=20
>=20
