On Wednesday, April 2, 2003, at 10:18 PM, J C Lawrence wrote:
On Wed, 02 Apr 2003 22:35:17 -0700
Art Pollard <pollarda(_at_)lextek(_dot_)com> wrote:
A properly designed system would have IMHO added you to the whitelist
the moment that the student you mentioned sent you a message. If you
are good enough to communicate with (i.e., you can infer that you are
not a spammer because he sent you a message) then you should be
automatically whitelisted.
Careful, this is fragile. My envelope frequently doesn't match my
From:, and in the case of role addresses, the initial To: won't match
my
From: or envelope.
If a whitelist were implemented by your mail client, it could access
your address book and automatically adjust your whitelist based on
what's in there. You could, in fact, automatically implement a
greylist, too:
1) permanent entry in an address book: whitelisted.
2) cached entry in address book: accepted without challenge, flagged.
3) not in address book: challenge/response, held on to by client until
the response is seen or it times out.
address book can then be used to implement the blacklist, stuff
automatically thrown out, similar to how OS X's mail.app implements a
junk mail filter.
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