From: ram (ramnetcore.co.in)
Date: Mon Mar 03 2008 - 07:21:14 CST

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On Mon, 2008-03-03 at 10:12 +0100, Ralf Hildebrandt wrote:
> * ram <ramnetcore.co.in>:
> > On my postfix 2.4.3 servers I maintain a list of users for most domains
> > I accept mail for. So I am able to reject SMTP connections to incorrect
> > ids right after RCPT-TO
> >
> > I would like to send a TEMPFAIL to all smtp clients who have been
> > bombarding my servers with undeliverable mails ( atleast attempting to )
> > in the last half hour
> > That way I would be rejecting a lot of spams wth TEMPFAIL and by the
> > time the ip is "released" it would have got listed in rbls
> > (I believe yahoo does something similar too. )
>
> Use fail2ban
>

Ok fail2ban from the site seems to be a generic ip listing software
parsing lines from the logs

I was thinking if there was something like anvil & message_rate_limit
that would be far more efficient and would have no time lag too

Thanks
Ram

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