From owner-freebsd-questions@FreeBSD.ORG Thu Feb 16 16:00:36 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0793816A420 for ; Thu, 16 Feb 2006 16:00:36 +0000 (GMT) (envelope-from jimcsoka@dominionfirstmortgage.com) Received: from mail.dominionfirstmortgage.com (h-66-167-151-186.mclnva23.covad.net [66.167.151.186]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6DD5F43D45 for ; Thu, 16 Feb 2006 16:00:35 +0000 (GMT) (envelope-from jimcsoka@dominionfirstmortgage.com) Received: from jimcsoka ([192.168.7.46]) by mail.dominionfirstmortgage.com (8.13.3/8.13.3) with SMTP id k1GG2ChF042790 for ; Thu, 16 Feb 2006 11:02:12 -0500 (EST) (envelope-from jimcsoka@dominionfirstmortgage.com) Message-ID: <01f001c63314$a8c01180$2e07a8c0@domfirst.local> From: "James Csoka" To: References: Date: Thu, 16 Feb 2006 11:18:44 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-DFMC-MailScanner-Information: Please contact the ISP for more information X-DFMC-MailScanner: Found to be clean X-MailScanner-From: jimcsoka@dominionfirstmortgage.com Subject: Re: Blocking an individual email address X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Feb 2006 16:00:36 -0000 ----- Original Message ----- From: To: "James Csoka" ; "Ken Stevenson" Cc: Sent: Thursday, February 16, 2006 10:55 AM Subject: RE: Blocking an individual email address > > > Jim Csoka wrote: > > > No...I ran make maps, as well as make install for the blacklist > feature, > > > and make restart. > > > > > > However, here is something interesting. When I access my > corporate > > > email via openwebmail, it functions as I would expect....you > cannot send > > > or receive to the given address. However, when using Outlook > Express > > > (internal mail client at work), you can still send mail to the > address I > > > am trying to block. > > > > > > Why should this be so? > > > > > Are you sure Outlook Express is configured to use your FreeBSD > server > > for SMTP? Send an email to yourself using Outlook Express then > look at > > the message source and check the headers to verify which SMTP > server > > is sending the message. > > > > -- > > Ken Stevenson > > Allen-Myland Inc. > > > > Yes, I'm sure. It is the incoming and outgoing SMTP server. It's > the only > one we have. > > -Jim > > _______________________________________________ > > Yes that may be the only one you have, but that does not stop the > user from configuring their outlook express from using their > personal email account at their ISP. To stop this you can add > firewall rules to deny all LAN traffic out to ports 25 & 110 by > coding the private LAN ip address range in the rule "from" option. > Since your SMTP service is on the gateway box where the firewall is > your outbound port 25 will pass because your using the public ip > address or if that is not the case then just add a rule before the > deny rule to pass your SMTP LAN ip address. > > > > Understood. However, most everyone here in my office (a mortgage company of about 25 people) can barely even spell the word computer much less use one effectively. And, aside from that, I am running these tests from my windows client, so I can verify that it is configured correctly for the purpose of running these tests. Although I wish it were as simple as someone using a different SMTP server....it would make my life easier :P