Subject: Re: postfix spam relay problem
To: None <tech-userlevel@NetBSD.ORG>
From: Kent Polk <kent@goathill.org>
List: tech-userlevel
Date: 09/27/2001 18:37:25
On 27 Sep 2001 00:45:05 GMT, Kent Polk wrote:
> I just discovered that my someone has been using my postfix mailer
> to deliver spam this afternoon.
> 
> Now :
> # By default, Postfix relays mail
> # - from trusted clients whose IP address matches $mynetworks,
> # - from trusted clients matching $relay_domains or subdomains thereof,
> # - from untrusted clients to destinations that match $relay_domains
> #   or subdomains thereof, except addresses with sender-specified routing.
> 
> now I have *none of the relay options* turned on, and I have
> specifically listed the ip address of the local hosts that are
> allowed to relay using:
> 
> mynetworks = ....

Note that even turning off mynetworks, and including what appear
to be all of the norelay options on, the current pkgsrc version of
Postfix still relays email.

Interesting, no?