Marc,
On Sonntag, 24. Oktober 2004, Marc Perkel wrote:
> Here's what I propose for autoreporting of rfc-ignorant and why:
> First - I'm only talking about the case where ALL null senders are
> rejected - example:
> HELO ctyme.com
> 250 helo MRLRY
> mail from:<>
> 501 bogus mail from
> This is the initial sequence of a callback sender verification.
> Now reporting these is a good thing because if someone is going to
> reject <> then they should be listed as rejecting <>. so the world knows
> this. I have an ACL that actually whitelists rfc-ignorant domains.
[..]
The world knows about it, but then? How about - in your incoming SMTP
dialogue - rejecting the message with a pointer to an URL where in
clear words is described what is happening and why?
The fact that many don't play by the rules according to my experience
is in most cases based on the fact that they don't know the rules. So
education should be preferred to plain reporting, shouldn't it?
> So - if I had autoreporting then after one bounce they get reported and
> after being added to the list - the messages would get through.
> It seems to me that if someone is going to ignore a rule like this then
> that's their choice. But they should be listed as someone who ignores
> the rule so that others can decide how they want to interact with
> servers that ignore the rule.
Which would gain the remote end user virtually nothing at all since he
or her still won't be able to receive NDN or status messages.
> Sender callout verification is something that's working extremely well
> for me in fighting spam and I don't want to give it up because of
> stubborn people.
Hm, given the above is true, then it's a question of time how long it
will be. As the past has shown to us, spammers learn. Slowly, but they
do learn. And I can promise you that the same way callbacks increase
in numbers, spammers will decrease the number of junkmails with non-
deliverable sender addresses.
My $0.02
vt
--
V. T. Mueller
Continum AG
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