On Wed, Feb 1, 2017 at 4:03 PM, Peter Gonzalez via dmarc-discuss
<[email protected]> wrote:
> On 2017 Jan 31, 21:14, Jim Popovitch wrote:
>> On Tue, Jan 31, 2017 at 5:24 PM, Peter Gonzalez wrote:
>>
>> > So what exactly did you do to "roll out additional DMARC support" in
>> > your Mailman setup?
>>
>> Mailman has historically done some funky things with moderator/owner
>> notifications. Depending on your Mailman config, mailman *might*
>> send list notifications in ways you might not expect. I set out last
>> year to identify what I saw as bugs in the way Mailman sent
>> notifications differently than list traffic. Those changes are
>> tracked here:
>> https://code.launchpad.net/~jimpop/mailman/virtual-notices
>
> Does that mean that the DMARC checks from which you are getting failure
> reports are being done against "mailing list notifications" and not
> against "regular mailing list traffic"? And, if so, that those "mailing
> list notifications" are the result of your non-standard setup and not
> of vanilla mailman?
Nope, nope. The DMARC reports are from list traffic not list
notifications to mods. The reasons for the many passes are that the
list traffic passes DMARC. The limited failures are from receivers
who are doing something unknown wrong, imho. Why would they send my
domains DMARC reports for list emails where the From domain is the
poster's?
>> > I don't see why you suspect receivers of your mailing list traffic are
>> > doing it wrong when checking it for DMARC. Mailing list traffic is prone
>> > to fail DMARC checks in subtle ways.
>>
>> It is disingenuous, imho, for a receiver to submit a DMARC report to a
>> sender if the subtle failures are receiver side or if those reports
>> don't contain enough information for the receiver to understand the
>> reason(s) for the subtle failure ("give me the RUF or STFU"). :-)
>
> Yes, but it has not yet been established whether those DMARC check
> failures are the result of those receiver's wrong doing.
Well it has to be those few receivers wrong doing since a
statistically significant list of others attest to the alignment of
the same set of emails.
-Jim P.
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