From owner-freebsd-questions@FreeBSD.ORG Mon Jul 16 05:49:17 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B4A9716A400 for ; Mon, 16 Jul 2007 05:49:17 +0000 (UTC) (envelope-from on@cs.ait.ac.th) Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16]) by mx1.freebsd.org (Postfix) with ESMTP id 383A913C428 for ; Mon, 16 Jul 2007 05:49:16 +0000 (UTC) (envelope-from on@cs.ait.ac.th) Received: from banyan.cs.ait.ac.th (banyan.cs.ait.ac.th [192.41.170.5]) by mail.cs.ait.ac.th (8.13.1/8.12.11) with ESMTP id l6G5nF6w006099 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 16 Jul 2007 12:49:15 +0700 (ICT) Received: (from on@localhost) by banyan.cs.ait.ac.th (8.13.3/8.12.11) id l6G5nFCP002529; Mon, 16 Jul 2007 12:49:15 +0700 (ICT) Date: Mon, 16 Jul 2007 12:49:15 +0700 (ICT) Message-Id: <200707160549.l6G5nFCP002529@banyan.cs.ait.ac.th> From: Olivier Nicole To: freebsd-questions@freebsd.org In-reply-to: <47E045D4-44AB-44B8-A358-59ECA482CF81@goldmark.org> (message from Jeffrey Goldberg on Fri, 13 Jul 2007 15:12:10 -0500) References: <200707130730.l6D7U6v9086226@banyan.cs.ait.ac.th> <47E045D4-44AB-44B8-A358-59ECA482CF81@goldmark.org> X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/) Subject: Re: Transparent email proxy 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: Mon, 16 Jul 2007 05:49:17 -0000 Hi, > With the firewall, it is easy to make the use of the outgoing mail > hub compulsory. Is there some reason beyond that that you want to do > things transparently? Yes, I should have been a bit more specific. As university department, we receive a number of visitors, when they have been in the plane for 24 hours, they usually want to check their email: each time we have to inform them that they can only send through our mail gateway, and they have to temporarily change their setting for the duration fo their visit, and remember to change back when they left: that is annoying (and I am not always around to tell them why they cannot send their email). That is why I am thinking about transparent redirection. Best regards, Olivier