OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
Re: Postfix spam control from trusted IPs in mynetworks

From: Tony Earnshaw (tonyebilly.demon.nl)
Date: Fri Jan 02 2004 - 09:00:01 CST


fre, 02.01.2004 kl. 13.59 skrev Alex van den Bogaerdt:

> "Mail comes in from an IP ..." --> the smtp daemon, right?
>
> Run an extra instance of the smtpd program, one that can be
> accessed from the internal network only. This is the only
> smtpd accepting messages from your local users. It is then
> easy to accept "mail from" known domains and discard the rest.
>
> The other smtpd only listens to external connections. Mynetworks
> need not include the internal networks in that case.

How would this help in weeding out users who send mail saying that it
comes from someone else than themselves? E.g., mail forgers, spammers
and pranksters. Which is what OP wants.

--Tonni

--
mail: billy - at - billy.demon.nl
http://www.billy.demon.nl