hi all
recently we had a spam attack due to a compromised user. we are planning
on a script to prevent this by having an automatic tool to monitor the
qmail queue.
if the number of emails in the queue exceeds say 100 then open every email
in the queue, track the ips and if any one is repeated more than 50 times
block the ip address in iptables
my questions
Question no 1
will opening and reading the qmail queue cause any kind of corruption of
the queue ?
Question no 2
is there a better way to control such spammers by having a limit on the
number of emails per day or per hour thru one specific smtp authenticated
user id and password ?
any ideas on this would be very helpful
thanks
rajesh
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