On Mon, 12 Jan 1998, Robert Shaw wrote:
> We have several complaints about spam hitting the
> pab-submit@gtld-mou.org mailing list. One alternative
> is to shut down this address. What do you think?
Don't shut down a list just because some spammers hit it.
>From my experience with stemming the tide here,
a couple of simple steps can reduce spam greatly.
First, only accept mail from senders with working DNS.
We started this a couple of months ago and haven't
received any complaints. I catch 700-1500 spams per
day with this. I review the logs periodically and that
really is spam, not DNS failures.
Check for valid Message-IDs. That seems to catch about
half of the remainder which is all from hijacked relay
sites.
You can do more but this stops a huge percentage of spam
and no one has an excuse for broken DNS on an SMTP host
or for invalid message ids.
Dan
-- Dan Busarow 714 443 4172 DPC Systems / Beach.Net dan@dpcsys.com Dana Point, California 83 09 EF 59 E0 11 89 B4 8D 09 DB FD E1 DD 0C 82
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