[9777] in North American Network Operators' Group
Re: RFC 1918 addresses
daemon@ATHENA.MIT.EDU (Deepak Jain)
Sun Jun 1 14:40:14 1997
Date: Sun, 1 Jun 1997 14:40:09 -0400 (EDT)
From: Deepak Jain <deepak@jain.com>
To: Matthew James Gering <mgering@ricochet.net>
cc: nanog@merit.edu
In-Reply-To: <199706010514.WAA19729@rgate.metricom.com>
I believe a number of firewall packages and a few anonymous remailers
(sendmail based) support header stripping. I know for a fact spammer
software does it.
-Deepak.
On Sat, 31 May 1997, Matthew James Gering wrote:
>
> > Exposing an RFC 1918 private address in, say, a "Received:" header in
> e-mail
> > is less of a problem, though the spammers who do it are actually better
> able
> > to cover their origins, there's no way to prevent it and no normal damage
>
> > from doing it.
>
> Unless the SMTP server used to proxy email through a firewall is able to
> strip headers, it's unavoidable.
> I would like to see that feature added to SMTP servers, however, I do hate
> letting internal host names and addresses out.
>
> Matt
>
