From owner-freebsd-chat Wed May 15 8: 2:51 2002 Delivered-To: freebsd-chat@freebsd.org Received: from williams.mc.vanderbilt.edu (williams.mc.Vanderbilt.Edu [160.129.208.222]) by hub.freebsd.org (Postfix) with SMTP id 90B8A37B405 for ; Wed, 15 May 2002 08:02:46 -0700 (PDT) Received: (qmail 27818 invoked by uid 19192); 15 May 2002 15:03:05 -0000 Date: Wed, 15 May 2002 10:03:03 -0500 To: freebsd-chat@freebsd.org Subject: Re: internal hosts in email Message-ID: <20020515150303.GU16671@williams.mc.vanderbilt.edu> References: <3CE2702A.A67642FE@centtech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3CE2702A.A67642FE@centtech.com> User-Agent: Mutt/1.3.99i X-GPG-Key: 0x727A9DD2 (http://drew.rain3s.net/pubkey.asc) From: Drew Raines Mail-Followup-To: freebsd-chat@freebsd.org X-Delivery-Agent: TMDA/0.55+ Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Eric Anderson wrote: > > I have an internal mail server, which is the SMTP server for our > internal hosts, and then a "firewall" mail server (or however you > want to call it), that is the SMARTHOST that the internal mail > server dumps its mail to when it is bound for non-internal email > addresses. Great. > The problem is, the mail headers show all the internal hosts that > the mail passed (via the Received: lines), and I think that is a > security risk. No. If you're concerned because of the software you're running, run better software. > Does anyone have a trick to remove those using the .mc files? Obscurity is not security. MTA's add those fields for a reason. If you ever have to diagnose a mail delivery problem, you'll probably want them there. -- Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message