Date: Sat, 06 Mar 1999 00:21:31 +1300 From: Andrew McNaughton <andrew@squiz.co.nz> To: Stuart Henderson <stuart@eclipse.net.uk> Cc: Haifeng Guo <haifeng@ms.lawton.com.cn>, freebsd-isp@FreeBSD.ORG Subject: Re: Mail server setup Message-ID: <199903051121.AAA13938@aniwa.sky> In-Reply-To: Your message of "Thu, 04 Mar 1999 09:55:53 -0000." <36DE58A9.E048B6EA@eclipse.net.uk>
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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
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