I don't see a way to do this with qmail myself.

-John

----- Original Message ----- 
From: "Mark Turrin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, November 09, 2003 6:53 PM
Subject: Re: Changed spammer-technique ?


>
> Isn't there a way to deny mail that spoofs your own address by checking
> the IP# of the connecting machine.  If the machine's IP# isn't in your
> domain the mail address is forged and should be rejected.
>
> It seems that this kind of checking should be something the MTA would
> handle straight away before tmda even sees the mail.  Authentic mail from
> [EMAIL PROTECTED] would have to connect from a machine in your pool of IP
> numbers.
>
> Does qmail do this?
>
> ___________________________________________________________________
> Mark L. Turrin            [EMAIL PROTECTED]
> ---
>
>
>
> On Sun, 9 Nov 2003, Tim Legant wrote:
>
> > Date: 09 Nov 2003 16:19:52 -0600
> > From: Tim Legant <[EMAIL PROTECTED]>
> > Reply-To: [EMAIL PROTECTED]
> > To: [EMAIL PROTECTED]
> > Subject: Re: Changed spammer-technique ?
> >
> > Brian Ipsen <[EMAIL PROTECTED]> writes:
> >
> > > Consider the following headers:
> > >
> > > Return-Path: <[EMAIL PROTECTED]>
> >
> > [...]
> >
> > > The spammer uses my own email address as sender to try to inject spam
into
> > > my system - so the confirmation messages is sent to my own account
(and will
> > > later on bounce, but that is another issue).
> >
> > This is a common spammer technique, which is why you'll see people on
> > the list telling others not to whitelist themselves.
> >
> > > Is there any way of avoiding this ??
> >
> > Hunt down the spammers and shoot them? <wink>
> >
> > > Yes, I know I can drop emails with my own address as sender - or
> > > bounce them in my badmailfrom file in qmail...  but is there another
> > > way ??
> >
> > Not that I'm aware of.  The original message and the confirmation
> > request will both end up in pending/ and, after a while, will be
> > deleted.  That's the most effort-free way of dealing with it that I'm
> > aware of.
> >
> >
> > Tim
> >
> > _____________________________________________
> > tmda-users mailing list ([EMAIL PROTECTED])
> > http://tmda.net/lists/listinfo/tmda-users
> >
> _____________________________________________
> tmda-users mailing list ([EMAIL PROTECTED])
> http://tmda.net/lists/listinfo/tmda-users
>

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