Throttling mail

Thu Mar 25 15:58:23 UTC 2004

On Thu, 25 Mar 2004, Adi Linden wrote:

> Does anyone have any resources on building a mail relay that would limit
> the amount of email a single user or ip address can relay over a given
> time period?

http://monkey.org/~jose/software/vthrottle/

It allows you to say you will only take 1 email from an IP in a given
period of time, and you can whitelist and more.

What I'm looking for that would be even better is vthrottle added onto,
or something else that I just haven't found yet, that would have a sliding
window X and say that within X we will only take Y emails, and block if
its above that. Have X and Y be a generic setting and then the ability to
change them for a given netblock, so that AOL and other large providers do
not get hit by it.

But as it is, libmilter vthrottle looks like the best there is right now.