Hi,
In my experience, with spam arriving to a single domain.
They do
arrive in surges and last for few minutes/hours depending on
the spammer,
but generally they occur close to each other. It depends on
the spam list
being used.
The domain in question ayna.com receives over 400k messages
a day, and most
of it is spam. And regardless of what filters are
installed, junk will go
through it. Many times it bottles up and no mail gets
through until the
spammer attacks slow down.
As a mail provider I am more inclined to use stamps as a way
to filter out
spam. If the spammer wants to get to the network and pays,
that is fine with
me, as long as I recoup the cost of running the server.
thanks
Adonis
----- Original Message Follows -----
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----- Message Forwarded on Tue, 11 Mar 2003 19:37:35 GMT
-----
From: Vernon Schryver <vjs(_at_)calcite(_dot_)rhyolite(_dot_)com>
To: asrg(_at_)ietf(_dot_)org
Subject: Re: [Asrg] Measurements on spam
Date: Tue, 11 Mar 2003 11:31:36 -0700 (MST)
from: lstewart(_at_)acm(_dot_)org
...
Further, when spam arrives, is it bursty? Does it arrive
in clumps from > small numbers of sources or is it buried
uniformly among legitimate traffic > from all sources? ...
http://www.dcc-servers.net/dcc/graphs/ says that the flow
of spam is remarkably smooth. It's the legitimate traffic
that is not.
On the other (albeit anecdotal) hand, my traps get mostly
Eastern Hemisphere spam when the Western Hemisphere is
asleep and vice versa.
Vernon Schryver vjs(_at_)rhyolite(_dot_)com
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Adonis El Fakih, President
Centipaid Corporation
m: +1 508.801.0273
f: +1 603.386.6026
http://www.centipaid.com
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