From owner-freebsd-questions@FreeBSD.ORG Mon Nov 19 11:53:08 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9F1D016A418 for ; Mon, 19 Nov 2007 11:53:08 +0000 (UTC) (envelope-from tedm@toybox.placo.com) Received: from mail.freebsd-corp-net-guide.com (mail.freebsd-corp-net-guide.com [65.75.192.90]) by mx1.freebsd.org (Postfix) with ESMTP id 6CA8113C468 for ; Mon, 19 Nov 2007 11:53:08 +0000 (UTC) (envelope-from tedm@toybox.placo.com) Received: from TEDSDESK (nat-rtr.freebsd-corp-net-guide.com [65.75.197.130]) by mail.freebsd-corp-net-guide.com (8.13.8/8.13.8) with SMTP id lAJBqic2096575; Mon, 19 Nov 2007 03:52:45 -0800 (PST) (envelope-from tedm@toybox.placo.com) From: "Ted Mittelstaedt" To: "Olivier Nicole" , Date: Mon, 19 Nov 2007 03:53:07 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1914 In-Reply-To: <200711140204.lAE24oTv016136@banyan.cs.ait.ac.th> Importance: Normal Cc: Subject: RE: What server for a mail server 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, 19 Nov 2007 11:53:08 -0000 > -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Olivier Nicole > Sent: Tuesday, November 13, 2007 6:05 PM > To: freebsd-questions@freebsd.org > Subject: What server for a mail server > > > Hi, > > I have a project where I should set-up a mail server for approximately > 12000 users, 4000 virtual domains, 15000 messages per day, 700 MB > traffic per day. > 15000 messages is completely unrealistic for 12000 users unless this mailserver has no way to receive Internet mail. Try a number more along the lines of 1.2 million messages a day, most of which are spam that you will delete before they get to the users mailbox. > The machine should run Postfix, courrier-imap and a web mail (probably > squirel), Apache 2, spamassassin, clamav, greylist Totally inappropriate and will not work. Your going to be lucky to get it to run with just the stuff that HAS to be on it. That is, the MTA itself and the anti-spam scanning and the POP/IMAP server. Putting webmail on it will drown it. You will need a second box for that. Most likely you really need a cluster of at least 4 servers here. 2 input filters that spam scan and virus scan and just send the filtered mail to the 3rd server which does pop/imap and outbound mail, and a 4th that just does webmail. If your looking at squirrel it's pretty clear to me that you do not have experience with large busy mailservers. Not that squirrel and postfix and courier couldn't do it - rather that they are chosen by inexperienced people because they are perceived to be easy to use. If that is the case your in over your head. Get some help before you botch it. Ted