Webserver :: limit postfix sending mail (malicious php scripts)

Hi guru's...

Problem: (public) webserver with malicious mailscript was used to send
(spam) mail.
Is there a way to prevent this from happening??

e.g. limit postfix to send only 1 mail per second...
Have been digging the smtpd_recipients options etc, but can't figure out the
best way..

Help is much appreciated.

Kind regards,
Marco

The Postfix feature you want is called "anvil".

The anvil(8) server implements client connection and request rate limiting
for all smtpd(8) servers. The TUNING_README document provides guidance for
dealing with mis-behaving SMTP clients. The anvil(8) service is available
in Postfix version 2.2 and later.

Reference: man anvil

--
Greg



Q wrote:
> Hi guru's...
>
> Problem: (public) webserver with malicious mailscript was used to send
> (spam) mail.
> Is there a way to prevent this from happening??
>
> e.g. limit postfix to send only 1 mail per second...
> Have been digging the smtpd_recipients options etc, but can't figure out the
> best way..
>
> Help is much appreciated.
>
> Kind regards,
> Marco
>
>