Date: Mon, 6 Jan 1997 15:03:47 -0800 (PST) From: Peter Carah <pete@news.interworld.net> To: davidn@unique.usn.blaze.net.au Cc: isp@freebsd.org Subject: Re: pop server with virtual domains Message-ID: <199701062303.PAA10885@news.interworld.net> In-Reply-To: <Mutt.19970106192040.davidn@labs.blaze.net.au>
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In article <Mutt.19970106192040.davidn@labs.blaze.net.au> you write: >I'm looking for a POP3 (preferably imap too) server that >handles virtual domains. In particular, it needs to handle >"virtual users" of those domains as well, which is essentially >to avoid setting up user accounts on a box that needs to handle >mail on behalf of anything up to 60 or so domains. >Now, I can set up sendmail with virtual domain support, or >I can even map incoming mail to those domains to special >mailers that handle local delivery, verify against a >userlist that is not in /etc/passwd etc. so that side of >it is not a problem. What I'm looking for is the other >component - a pop-capable server that can take connections >on behalf of a list of domains, use a domain-specific >user/password list and access mailboxes in a domain-specific >location. >Does such a package exist? I have one running here; it was a hack to popper 2.1.4 grabbed from qualcomm's site. For similar reasons to web servers, you have to have an ip address per desired pop3 domain; there is nothing in the protocol which communicates this into to you otherwise. Keeps its own password files and mail spool directories. There may be some security holes I don't realize from the fact that all references to a given virtual domain's mail are done under one user id. It does allow for someone from the domain to change passwords, but I haven't ported any of the poppasswd sample routines from qualcomm to work with my password scheme (it wouldn't be hard but I haven't gotten a "round tuit")... This one doesn't handle imap. Imap as far as I can see will already do virtual domains. In other words, it seems to work (I have it going on 4 or 5 domains on 3 machines) but no guarantees. I could try to generate diffs (most changes are in 2 or 3 new files plus a delivery agent and password routine, but there were some fairly extensive changes to the original password routine and pop_dropcopy.) -- Pete
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