On Sun, 23 Feb 2003 22:50:30 -0800
Roger B A Klorese <Roger> wrote:
> J C Lawrence wrote:
>>> a combination of good whitelists and good spam analysis software
>>> will go a long way towards getting the spam problem under control.
>> Its great stuff -- far better than I'd ever expected.
> I can't imagine almost anyone I know and correspond with being able to
> figure out a TMDA exchange, or for that matter, not being offended at
> having to ask permission to email me.
A few points:
-- I don't use TMDA on my personal, just on my lists and role
addresses (-owner, -admin, postmaster, webmaster, etc). FWLIW this is
not due to any concern over offense, but rather more simply because my
SPAM/virus filters are already effective enough to keep my junk rate
in my personal mailboxes to single digit message counts per day -- not
enough problem to warrant messing with.
-- At this point 112 different addresses have been confirmed thru my
list TMDA setup in the last year (determined by counting the size of
the whitelist), representing a total posting population on the lists
handled by that server of approximately 470 (depending on how you
count it, time periods and the like).
-- Quick survey of the confirmed address suggests that 3% of them are
variant addresses for the same human
-- The total volume of mail that has successfully passed thru my TMDA
list setup in the last year is ~40,000 messages.
-- Of those 40,000, 4 messages were trapped by TMDA and not confirmed
thru by their authors. In one of those cases the author merely
reposted from a subscribed address, thus bypassing the TMDA hold.
-- During that same year I've received a little under a dozen messages
from posters to the effect of, "I was worried about this, but it
turned out to be so simple!" To quote one poster, am economist by
trade, "If this is all that's involved, then you have nothing to be
worried about. It was too easy to even notice." That's pretty close
to 10% of the confirming audience.
-- None have complained about either the confirmation process, or the
fact that they had to confirm.
-- I use a modified version of the default TMDA confirmation request:
From: "%(FULLNAME)s" <%(recipient_address)s>
Subject: Please confirm your message for final delivery
THIS IS AN AUTOMATED MESSAGE FROM A MACHINE.
Your e-mail message with the subject of "%(subject)s"
is being held because your address was not recognized by the
mail filtering system at %(recipient_domain)s.
To release your message for delivery, please send a message
to the following address, or use your mailer's "Reply" feature.
%(confirm_accept_address)s
You don't need to to anything other than reply to this message
to have your original message delivered. This confirmation process
verifies that your message is legitimate and not junk-mail.
Thank you for your patience and assistance in helping keep the mailing
list systems at Kanga.Nu SPAM free.
--- Following is a copy of your message.
%(original_message)s
--
J C Lawrence
---------(*) Satan, oscillate my metallic sonatas.
claw@kanga.nu He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.
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