Marc wrote:
> So what I need apparently is a pair of acls and trying to understand how
> it works. The first ACL will need to read the rate into an ACL variable
> without adding to the total. I guess if I had a condition in the acl
> that forced it to be false then the count wouldn't increase? But if it's
> false, can I set the variable?

Perhaps this may be of help:

http://www.exim.org/exim-html-4.60/doc/html/spec.html/ch39.html#SECTratelimiting

Of interest to you should be the per_cmd option to the ratelimit engine. 
Mix it with your test for an invalid address so it will record a hit (based 
on sender IP), and set your limits.  After the ratelimit test, use a delay 
of your choice.

Untested, but sounds plausible.

Eli. 


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