Hello, I am running a 3.5 MBit SDSL from <http://www.nerim.net/> and have a @home Mailserver which is currently (since 2007-12-17) hit by daily several 100.000 spams (2-5 times 30-120 minutes) from over 2000 different IP's.
My mailserver is rejecing thios shit nearly perfect but the server
has a System- and CPU-load of nearly 100% which make the IMAP server
unusable and since the sevrer does automated mailprocessing (40.000
per day) I hit a real problem.
Now, since most senders (over 90%) have wrong reverse DNS I like to
know, whether there is a possibility to block such connections on
the router with iptables and helpers?
Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant
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##################### Debian GNU/Linux Consultant #####################
Michelle Konzack Apt. 917 ICQ #328449886
50, rue de Soultz MSN LinuxMichi
0033/6/61925193 67100 Strasbourg/France IRC #Debian (irc.icq.com)
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