From owner-freebsd-isp Fri Mar 5 3:22:36 1999 Delivered-To: freebsd-isp@freebsd.org Received: from aniwa.sky (p12-max12.wlg.ihug.co.nz [216.100.145.12]) by hub.freebsd.org (Postfix) with ESMTP id 3297C14DDC for ; Fri, 5 Mar 1999 03:22:22 -0800 (PST) (envelope-from andrew@squiz.co.nz) Received: from aniwa.sky (localhost [127.0.0.1]) by aniwa.sky (8.9.1a/8.9.1) with ESMTP id AAA13938; Sat, 6 Mar 1999 00:21:32 +1300 (NZDT) Message-Id: <199903051121.AAA13938@aniwa.sky> X-Mailer: exmh version 2.0.2 2/24/98 To: Stuart Henderson Cc: Haifeng Guo , freebsd-isp@FreeBSD.ORG Subject: Re: Mail server setup In-reply-to: Your message of "Thu, 04 Mar 1999 09:55:53 -0000." <36DE58A9.E048B6EA@eclipse.net.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 06 Mar 1999 00:21:31 +1300 From: Andrew McNaughton Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org stuart@eclipse.net.uk said: > > I don't imagine you really want to have to organise 100,000 > > users into changing their pop server settings. You can > > probably multiplex your domain name out to multiple machines > > all connecting via NFS (probably a dedicated mini-network > > between the servers), and have all of your mail stored on > > one file system. > > You could have a daemon on a cluster of machines (either DNS or > NAT-based load balancing) to answer port 110, examine the username to > choose a server and proxy off the connection. Aren't NFS mounted mail > spools generally a Bad Thing? I gather that NFS causes problems with lockfiles when used with sendmail, but this is supposedly not a problem with the MailDir mailbox format used by qmail. I seem to remember procmail claiming to deliver reliably over NFS. I don't know whether that reliability extends to safe interaction with whatever pop server is in use. Andrew McNaughton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message