[LINK] spam stats
cas at taz.net.au
Sun Oct 29 15:12:17 AEDT 2006
i just checked ran my spam-stats script on last week's mail log file.
this is on my small home server, which handles mail for about half a
dozen users (friends and family) in 4 domains.
in one week, 49225 spams were blocked. that's 168 per hour. 4.9 per
minute. or about one spam every 12 seconds. a further 94 got through my
postfix smtp-level filtering to be tagged by spamassassin and diverted
to a spam-trap folder. about half a dozen got through both postfix and
spamassasin rules and were delivered to a real mailbox.
all this to deliver just under 900 legit messages to half a dozen mail
users on my system.
i estimate that i spend at least 4 or 5 hours per week examining my
spam-traps, creating and updating anti-spam rules, monitoring log files
- all so that email remains usable, and not buried under the deluge of
spam. i've been doing this for over 10 years, sometimes more than 5
hours, sometimes less...but it's a constant drain on my time and energy.
this is outrageous. i'm sick of it. unfortunately, i've got no choice
but to continue doing it because i don't want to give up email. and
there's no other way to do it, anti-spam laws are basically ineffectual
and always will be - even with spammers like Mansfield in Perth being
fined millions, he isn't and wasn't even a significant part of the
problem. he was a big spammer here in australia, but insignificant
compared to some of the american spammers.
ps: one of the worst things about this is having to examine the
spam-traps. that means i have to scan the spam captured by spamassassin
(anywhere from 3 to a dozen messages per day...fortunately, the vast
majority is rejected during the smtp session and i don't have to see it)
in order to construct new rules to block the new spammer techniques.
the kind of filth i have to read is sickening. it's vile, repulsive
stuff highlighting the worst things about humans - stupidity, greed,
ignorance, and obsessions with nasty, degrading porn-film style sex.
pps: actual stats:
ganesh:/etc/postfix# spam-stats.pl /var/log/mail.log.0
1 Unwanted Virus Notification
2 Recipient address rejected
3 RBL bogusmx.rfc-ignorant.org
3 RBL hongkong.blackholes.us
11 strict 7-bit headers
13 RBL bhnc.njabl.org
27 RBL taiwan.blackholes.us
37 RBL brazil.blackholes.us
89 RBL dul.dnsbl.sorbs.net
197 Local address forgery
220 RBL list.dsbl.org
232 Relay access denied
278 RBL cn-kr.blackholes.us
288 Greylisted delivery attempt
299 RBL combined.njabl.org
384 Local access rule: Helo command rejected
443 header checks (Spam)
518 body checks (Spam)
650 RBL sbl-xbl.spamhaus.org
1091 Dynamic IP Trespass
1246 Sender Domain Not Found
2148 Local access rule: Client host rejected
5262 Recipient Domain Not Found
6816 Local access rule: Sender address rejected
7789 User unknown
10243 Bad HELO
10935 Need FQDN address
spam ratio (49319/50192) 98.26%
tagged messages (94/967) 9.72%
rejected spam (49225/49319) 99.81%
pps: my mail log file is rotated weekly at about 7am on a sunday. so far
today, 2119 spams have been rejected. that's 264 per hour.
craig sanders <cas at taz.net.au> (part time cyborg)
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