Weekly spam summary on September 3rd, 2005
Overall connections are down slightly from last week: 200,000 SMTP connections from 33,800 different IP addresses. The frontend's highwater mark for simultaneous connections hit 24 this time around.
Top 10 kernel level SMTP rejections:
Host/Mask Packets Bytes 18.104.22.168 13125 630K 22.214.171.124 10706 488K 126.96.36.199/24 9508 497K 188.8.131.52/12 6346 311K 184.108.40.206 5675 272K 220.127.116.11 5325 256K 18.104.22.168 5232 251K 22.214.171.124/24 4766 220K 126.96.36.199/10 4318 226K 188.8.131.52 4317 213K
Both 184.108.40.206 and 220.127.116.11 reappear from last week, but all the other hosts are new. 18.104.22.168/24 is the mail servers of Netvigator, who have now earned themselves an IP level block because I got tired of them banging on our SMTP port.
Connection-time rejection stats:
23374 total 10321 dynamic IP 6916 bad or no reverse DNS 1411 class bl-dsbl 1346 class bl-cbl 1228 class bl-spews 512 class bl-ordb 412 class bl-sbl 269 class bl-sdul 268 class bl-njabl 12 class bl-opm
There were some quite active attempts to mail us this week, the biggest simple source being 22.214.171.124 (listed at relays.ordb.org). The usual collection of free email providers continue their contributions.
On an eyeball scan, bad
HELOs and attempted bounces to nonexistent
local users are both down somewhat this week.