From owner-freebsd-questions@FreeBSD.ORG Sat Nov 24 19:53:31 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 363D816A478 for ; Sat, 24 Nov 2007 19:53:31 +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 C54A613C4D5 for ; Sat, 24 Nov 2007 19:53:30 +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 lAOJr003071030; Sat, 24 Nov 2007 11:53:02 -0800 (PST) (envelope-from tedm@toybox.placo.com) From: "Ted Mittelstaedt" To: "Wojciech Puchar" Date: Sat, 24 Nov 2007 11:54:09 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" 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: <20071119162823.O1476@wojtek.tensor.gdynia.pl> Importance: Normal Cc: Olivier Nicole , freebsd-questions@freebsd.org 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: Sat, 24 Nov 2007 19:53:31 -0000 > -----Original Message----- > From: Wojciech Puchar [mailto:wojtek@wojtek.tensor.gdynia.pl] > Sent: Monday, November 19, 2007 7:38 AM > To: Ted Mittelstaedt > Cc: Olivier Nicole; freebsd-questions@freebsd.org > Subject: RE: What server for a mail server > > > >> > >> 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. > > 200 mails*users/day is safe assumption. maybe 1-2 of them won't be spams > means about 2.5 million mails a day, assume 5 millions because there are > hours of low and high load. > > i would use jail for a virtual domain and users on those - in this jail, > use nullfs to share /usr (and save memory), > sendmail+procmail+spamassassin > works fine. > > it WILL survive this on average modern machine (but with 4 or more disks) > without problems, unless spamassassin turned off. > > if not - it will need possible a few machines. POSSIBLY on one, with 2-4 > cores and lots of RAM, and properly configured spamassassin. > The problem with doing it this way is the all-eggs-in-one-basket issue. When you spread out the load among multiple machines, it is a lot cheaper to purchase machines, at least in the US. And if there is a problem with one of the processes it's usually easier to troubleshoot. The rest of the advice is good - and of course, we could spend days on a hardware discussion. Ted