Re: Postfix is spammer-friendly by default on potato and woody
- To: debian-security@lists.debian.org
- Cc: Peter Palfrader <ppalfrad@cosy.sbg.ac.at>, Borut Mrak <borut.mrak@ijs.si>, Ingemar Fällman <Ingemar.Fallman@UMDAC.UmU.SE>, Ethan Benson <erbenson@alaska.net>
- Subject: Re: Postfix is spammer-friendly by default on potato and woody
- From: Michael Meskes <meskes@debian.org>
- Date: Fri, 3 Nov 2000 10:26:10 +0100
- Message-id: <[🔎] 20001103102610.C1018@feivel.credativ.de>
- Mail-followup-to: debian-security@lists.debian.org, Peter Palfrader <ppalfrad@cosy.sbg.ac.at>, Borut Mrak <borut.mrak@ijs.si>, Ingemar Fällman <Ingemar.Fallman@UMDAC.UmU.SE>, Ethan Benson <erbenson@alaska.net>
- In-reply-to: <[🔎] 20001102131721.B2039@marvin.palfrader.org>; from ppalfrad@cosy.sbg.ac.at on Thu, Nov 02, 2000 at 01:17:21PM +0100
- References: <[🔎] 000b01c043df$cda9d000$452143a4@mars> <[🔎] 20001101194254.A9352@linuxasylum.net> <[🔎] 3A01370E.41C9599F@UMDAC.UmU.SE> <[🔎] 20001102014311.F709@plato.local.lan> <[🔎] 3A0146BF.5F6B7522@UMDAC.UmU.SE> <[🔎] 20001102015852.G709@plato.local.lan> <[🔎] 20001102120500.T19647@jabolko.si> <[🔎] 20001102022436.I709@plato.local.lan> <[🔎] 20001102123608.W19647@jabolko.si> <[🔎] 20001102131721.B2039@marvin.palfrader.org>
On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
> will be an open relay for the entire _class_A_ net 62.
Unfortunately not just for this.
> If you do not set mynetworks postfix guesses it from the interfaces and allows
> all hosts on the classful subnets of those interfaces to relay through you.
My main.cf contains:
mynetworks=127.0.0.1/8
but still I was able to send mail using From: and To: addresses on different
networks.
Michael
--
Michael Meskes
Michael@Fam-Meskes.De
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