Tony Finch wrote:
On Thu, 11 Jan 2007, Michael Scheidell wrote:
I don't think I see any sudden drop, was the worlds #1 spammer in that
hut in fluga that got bombed last night?
I haven't seen any drop recently either. For my systems (daily legit
volume 300,000 and spam 10x that) the spam peak was in the first half of
November and levels have been fairly constant (but with a level slightky
lower than the peak) since then.
I noticed a significant (absolute) drop towards the end of November. I
put it down to a change of tactics: a reduction in the number of
repeat-the-same-message-with-small-differences spam. These were
previously skewing our stats upwards, because effectively the same spam
from the same machine was being sent ~10-15 times to the same user with
small text changes (we were rate-limiting connections to reduce the SA
cost). This seems to be rarer now, or maybe even abandoned as a
technique by spammers.
Chris
