Toen ik Justin Gombos kietelde, kwam er dit uit:
Ruud:
As a proof-of-concept, I am developing a greylist-model
with procmail. Here I present the first step, which is
not very practical but you might want to learn from it.
What's the idea behing greylisting?
google: greylisting SMTP
For a second, I thought it was starting to solve a problem I have
where people ignore my mail-followup-to header, and reply to me
and the list, causing me to get two copies.
When I get around to it, I want to write a script that will take both
messages (any order), deliver the list reply to the inbox for that
list, and attach the personal one to a quick explanation on what the
mail-followup-to header means. I'm just not sure whether that will
piss off a lot of people.
Adding a Reply-To:header to your list-messages will also help.
AFAIK, the Mail-followup-to:header is not followed by many
mail-clients.
The direct message can arrive first. You can deduce
from the headers that the reply did not come through
the list. But then, it might still be a personal reaction.
So keep the message-id-cache of both list and direct messages
in separate caches, and check both for each concerning message.
Once the second message arrives, reply something helpful to the
From:address (unless there is a Reply-To that doesn't point
to the list).
--
Affijn, Ruud
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