Matt
Mon, 07 Jun 2004 14:08:13 -0700
|
I should also add that over the last 3 to 4 months, we have seen the
mix of zombie spam to static IP spam change from about 40:60 to 65:35
in favor of the zombie spammers. Some of this was likely due to a
change in our customer base, but the majority of it almost definitely
came as a result of more zombies spreading more spam. It is possible
that static spammers have dropped off a tad bit, though not by much,
but that's still around a 40% increase in zombie spam in just 3 to 4
months. If anything, I expected zombie spammers to reduce in frequency
after CAN-SPAM in favor of the now legalized non-forging static IP
spamming (not that zombie spamming was ever actually legal though). Matt Pete McNeil wrote: I can verify this also. See: http://www.sortmonster.com/MessageSniffer/Performance/ChangeRates.jsp Over the past 6 weeks or so we have seen typical daily rule change rates rise from about 250 to about 450. Change rates are primarily a measure of the number of new rules generated per day. Over the weekends we see blocking rates rise toward 90%. Average blocking rates are on the order of 77% or better consistently. (Based on logs reported from approximately 115 systems) http://www.sortmonster.com/MessageSniffer/Performance/FlowRates.jsp _M On Monday, June 7, 2004, 4:12:41 PM, Matt wrote: M> We've been seeing a steady increase in spam ever since I started keeping M> track, in fact the change in the percentage of spam vs. legitimate M> E-mail is noticeably higher on a weekly basis, every single week. Right M> now we are blocking about 85% of everything that comes in on weekdays, M> and +95% of everything that comes in on weekends. Thankfully, unlike M> Postini's customers, ours haven't noticed a thing :) M> Sorry for the dig at Postini, but their block rates suck as well as M> those of the other large players, and it's beyond me why they can't M> figure out how to do a better job. Besides, they lie about their actual M> block rates and they put an unfair burden on the client. M> Matt M> Robert Smith wrote:Is anyone else seeing a dramatic decrease in the volume of incoming email? We got our problem fixed with Postini (our problem actually, had to kill IMonitor) but I'm still seeing numbers that are only 50% of our norm. No errors in the logs that I can find other than spammers that can't get through. (send error 10054 on known spamming IP's) Robert Smith Futur@ ISP [EMAIL PROTECTED] 501-374-3888 To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ -- ===================================================== MailPure custom filters for Declude JunkMail Pro. http://www.mailpure.com/software/ ===================================================== |