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RE: Virtual Hosting for Email

Thanks for the replies Jeremy...

Well thats what I was looking for, and I figured that about the POP3 (kind
of a shame, isnt it :P).  I think ill go with using the full emails for
their logins.  but i dont want to use the linux auth for pop/imap/mta.  Im
expecting to have several hundred email addresses with only a few (10-20)
for ssh.  Id rather not fill my passwd file with junk.  Is this possible? =)
The other tech in my office managed to get exim/cyrus to read another file
passwords (which i could probably replicate) but we still had to add the
user to linux (just adduser --system --disabled-password <user>    and
authenticate with a htpasswd file).

Thanks again for any more insight,


-----Original Message-----
From: Jeremy Lunn [mailto:jeremy@austux.net]
Sent: Saturday, December 22, 2001 2:07 AM
To: Matthew Walkup
Cc: debian-isp@lists.debian.org
Subject: Re: Virtual Hosting for Email

On Fri, Dec 21, 2001 at 11:01:08PM -0800, Matthew Walkup wrote:
> a small client base now, so I think it should be alright).  So I need a
> smtp/pop package that is light-weight, and doesnt have much overhead.  The

Postfix is a great MTA (Mail Transfer Agent).  I don't know hich pop
package would be best.

Postfix supports having virtual hosts in an LDAP directory or a MySQL

> should be treated as seperate accounts.  AND the account logins should
> be just 'webmaster', and the pop server should be able to figure out which
> user it is by the server-name they are using ie 'mail.client1.com' or

That is not possible with only 1 IP addr.  Pop3 has no way of getting
the client software to send the hostname that it thinks it's connecting
to.  What you might be able to do is get your clients to set their
username in the pop3 client software to their email addr.
eg 'webmaster@client1.com'.

I have never tried to do that before.

> 'mail.client2.com'.  I dont even want shell access for each user, so
> method of authentication would be best anyways.  I have attempted to find

Set the users shell to /bin/false and if you want set ssh to only allow
a certain list of usernames and same with PAM for telnet/local console.

Jeremy Lunn
Melbourne, Australia
http://www.jabber.org/ - the next generation of Instant Messaging.

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