Claudio Telmon wrote:
Let me exemplify: my email address is on my town's public directory, and
some used cars sellers want to advertise by email special deals in each
town. An interpretation of "privacy" may imply that when the sellers
copy my address into their list, at the same time notify me the details
of their data processing. I don't want an email for that notification,
just a machine readable note at my MX server. That note should arrive
_before_ any email message, so that I can automatically delete my
address from the sellers' list even before they send me any
advertisement, if that's how I've configured the server.
This is another interesting example of "consent". Now, suppose that the
"details" require some lines of free text description, so that you can
properly decide if you like "how and why" they are using your address.
There, you have a consent request.
Well, having to collect agreements for data processing from each
subject is one of the most annoying applications of EU privacy
directives. It is as when one says: "May I ask you XYZ?" And the other
one replies: "Yes, you already did!" For email, it is possible to
avoid that _that kind_ of consent requests become entries in the
recipient's INBOX. One way to do so, considering multi-destination
delivery a kind of forwarding (see sec. 3.9 of rfc5321), is being
tentatively described at http://fixforwarding.org/.
But the problem is, spammers won't be that polite, not even in Europe
with our EU Directive :) So you will need to find a way to enforce
compliance with this requirement for your address, that is, a way for
the MTA to know who you authorized...
It may be enough to provide a convenient way to do it, without
enforcing it with blocking policies.
While it seems self-evident that spammers are exempted from complying
with anti-abuse message sender common practices, many careful senders
may be classified as spammers according to the MRDW acceptation of the
term spam. "Spammers" of the latter kind are sensible to reputation
concepts and make a good faith effort to comply with common practices,
because they reason that going along with prospects' desires is more
remunerative than loosing their own reputation on questionable deeds.
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