[exim] ratelimit and short timescales

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Autor: Jeremy Harris
Datum:  
To: exim-users @ exim. org
Betreff: [exim] ratelimit and short timescales
Hi,

What's the time resolution of ratelimit? Is a time of five seconds
resonable, or not really supported by the implementation?

I'm interested in detecting connection bursts, having noted that
one class of spammer (usually also zombie-farmed) makes three-to-six
connections close together. (They also have variable HELO names per IP,
and often but not always fail helo-verify).

Thanks,
    Jeremy