From owner-freebsd-isp Wed Mar 19 19:37: 5 2003 Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2F75B37B404 for ; Wed, 19 Mar 2003 19:37:04 -0800 (PST) Received: from gulliver.summitoh.net (cable-29-84.sssnet.com [24.140.29.84]) by mx1.FreeBSD.org (Postfix) with SMTP id E938A43F93 for ; Wed, 19 Mar 2003 19:37:02 -0800 (PST) (envelope-from watsonr@gulliver.summitoh.net) Received: (qmail 4200 invoked from network); 20 Mar 2003 03:37:02 -0000 Received: from rwwin.summitoh.net (HELO rwwin) (172.16.36.5) by ghostwind.summitoh.net with SMTP; 20 Mar 2003 03:37:02 -0000 Message-ID: <000701c2ee91$f87040d0$052410ac@rwwin> From: "Ryan Watson" To: References: <5.2.0.9.0.20030319184158.02da2ba8@mail.go2france.com> Subject: Re: Maximum recommended user limits on mail server Date: Wed, 19 Mar 2003 22:37:02 -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 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > You've got some good pointers on the mailbox servers, but nobody talked > about an multi-box architecture, which is the key to scaleability and > reliability. > > 1. dedicated box as SMTP gateway. > > 2. dedicated AV box > > 3. mailbox server, muchly liberated because no anti-mail abuse, no DNS > query delay, no retrying of delayed mail, no AV scanning, and 50+% of the > inbound mail rejected at the envelope by 1. > > The performance key to all three is, given enough RAM to avoid all > swapping, in disk i/o. With separate controllers+disks for logging, > mailqueue, and mailbox storage. And you need RAID (internal redundancy) > only on boxes where you can't have external redundancy (the MX boxes done't > need RAID). > > and RAID1 not RAID5. > I couldn't agree more. Ryan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message