[ih] DMARC [was "Father of e-Marketing"]

[Jack Haverty]

IMHO, the simplest effective anti-spam technique is an economic one.  If
it cost even a tiny fraction of a cent per addressee to send an email,
I'd expect there to be a lot less spam.  There are a variety of such
economic techniques to exert backpressure on senders, e.g., perhaps a
500 email per day limit on a typical "home user" account for free, with
high-volume users paying (a lot) more.

Way back in 1975 or so, I argued unsuccessfully for at least putting
mechanisms into the email protocols to implement tracking the usage of
email (accounting), which could be used for functions such as economic
backpressure (billing).    But I lost to the "everything should be free"
mantra of the era.

Back in my EE courses, I remember the principle of negative feedback -
without it, your circuit would oscillate wildly and might even
self-destruct.  Negative feedback ("backpressure") made circuits stable.

IMHO, the Internet is oscillating wildly, and techniques such as DMARC
et al are, as you say, just "workarounds", not true negative feedback.

/Jack

On 6/3/19 1:23 PM, Brian E Carpenter wrote:
> Vint's mail via this list is classified as spam due to failing DMARC.
> Failing DKIM doesn't seem to be so much of a problem. I've already
> seen traffic via an alias classified as spam by ARC, too. However,
> at the moment the IETF's work-around seems to be successfully
> working around DMARC.
>
> Maybe we can talk here about the history of anti-spam techniques.
> When was the kill file invented?
>
> Regards
>    Brian
>
> On 04-Jun-19 01:34, Dave Crocker wrote:
>> On 6/3/2019 2:55 PM, Vint Cerf wrote:
>>> Almost certainly a side effect of list processing.
>>
>> Exactly.
>>
>> Hence the recent, snap-on tool enhancement, called ARC, that is starting 
>> to get deployed.  (And it will be interesting to see whether it helps...)
>>
>> d/
>>
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