From: Allan Schaffer (allan++at++sgi.com)
Date: 04/15/2004 07:41:13
M. Kragtwijk wrote:
> Would it be possible for someone at SGI to remove all unwanted
> messages from the daily info-performer digest? I think this should
> not be too much work, but it will make the digest much more readable!
Hi Martijn,
Do you mean manually edit the digest message each night to remove any spam
that makes it through? Sorry, no.. :-)
Currently we use a filter method to get rid of spam. The first line of
defense is the SGI Corporate spam filters. In the past 7 days they have
trapped 25,336,132 spam messages (and let ~5M messages through). Next are a
series of procmail recipes that filter sites I've blacklisted, HTML messages,
messages containing particular keywords, messages over a particular size,
bcc'd messages, and a few others. Then as a last check it all goes through
one of the popular UNIX spam filtering programs. The historical result is
that usually about 1 spam per week managed to get through. Lately it's been
more; sometimes as much as one per day.
The next step, if we were to take it, would be to limit postings to the list
to subscribers only. I have actually had this running in the background for
a while now to see if it would work. The problem is that the logs show that
many, many of you are subscribed via addresses slightly different than the
one you send mail from. So we'd have to do a massive "list cleanup" first,
asking folks to check their addresses & resubscribe. It's ponderable, but
because of that little dilemma hasn't bubbled up to the top of the to-do list
so far.
Allan
-- Allan Schaffer allan++at++sgi.com Engr. Manager, Core Rendering 1-650-933-2160 Silicon Graphics http://www.sgi.com
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