[Greylist-users] Stopping "machine gunners" - not really a
DWYNNE at equinoxis.com
Mon Mar 13 06:26:00 PST 2006
>I think you want something like Sendmail 8.13.x's ratecontrol and
>conncontrol throttle options.
I had one of these options set, but added the other one - thanks.
We had a spammer hit last week with nearly 200 messages in just a few
minutes, greylist temp failed all of them and only 2 went through. The
brevity of the attack made me wonder why the connection parameters did not
block more of them. Turns out the spammer did not disconnect in between
e-mails - just connected up and let fly.
I Googled about this problem and it appears to be a weak spot in sendmail -
no way to limit messages per connection. Looks like I will need a milter
to do this or maybe something like this patch:
Did I miss something (again) in the sendmail setup - or is there no way to
limit messages per connection?
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