Date: 22 Jul 2003 09:29:20 -0400 From: Chris Shenton <chris@shenton.org> To: James Godwin <james@organicwire.net> Cc: freebsd-isp@freebsd.org Subject: Re: Ideal mail server: qmail or postfix Message-ID: <86d6g28zbj.fsf@PECTOPAH.shenton.org> In-Reply-To: <BB422296.66BE%james@organicwire.net> References: <BB422296.66BE%james@organicwire.net>
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James Godwin <james@organicwire.net> writes: > I was wondering what mail servers fellow ISP are running. I can't decide > between postfix or qmail. At one ISP I support, we've been running a qmail-based system with domain and user virtualization provided by vpopmail, courier-imap, and sqwebmail. Been solid as a rock. For lists, ezmlm-idx is the best I've used. Check www.inter7.org for pointers to the vpopmail stuff. I've set up qmail/vpopmail/courier-imap/sqwebmail for other small customers and never had a complaint, it just works. For a larger site (2000 people) I'm building something similar but using qmail-ldap for account provisioning and virtualization instead of vpopmail. I will again be using courier-imap and sqwebmail. One of the big advantages of qmail is its preferred mailbox format called Maildir. Each message is stored in a separate file which makes updates, deletions, scanning for new mail, etc much much faster than a large flat file. It's also safe across NFS mounts so you can have a number of mail servers reading from and delivering to the mailstore at the same time, without corruption. This makes it possible to easily scale a mail system as your users grow: just add more servers. Qmail, courier-imap, and sqwebmail all understand Maildir so they're a good combination.
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