Hello You can use the following config commands
smtp_accept_max = 40 smtp_accept_max_per_host = 5 smtp_ratelimit_hosts = 1.2.3.4 smtp_ratelimit_mail = 5,0.5s,1.05,1m smtp_ratelimit_rcpt = 5,0.25s,1.015,1m
It fixed a problem I had with a particular client we host for.
On 13 May 2005, at 09:56, Ian FREISLICH wrote:
wrote:Dear all,
is rate limiting a part of Exim in the meanwhile?
If not, did anyone implement such a thing and would be willing to share
his / her code?
I found an old e-mail in the archives (dated 1999) where someone said he'd
written some perl script to keep analyzing the Exim mainlog for that.
I wrote an embedded perl function to do rate limiting (I'm not sure if a ${run ..} expansion is cheaper or more expensive than ${perl ...}, although for multiple reciepts you only have to link in perl once). It uses a circular buffer of timestamps to calculate the rate. The number of items in the buffer and the elapsed time between the current insertion and the tail of the buffer is used to calculate the rate. It supports resizing of the buffer.
------------------------------------------------------------------- Stuart Gall Systems Administrator ------------------------------------------------------------------- No user serviceable parts inside? Ill be the judge of that!
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