[courier-users] Re: How do I limit one domain so emails can only be sent to/from a single address?

[bill]

Brian Candler writes:

On Wed, Jan 08, 2003 at 08:50:51AM -0500, Tobias Eigen wrote:

Thanks for the response. I'm having trouble seeing how this can be done
on a domain basis in qmail - and was hoping there would be a
solution/hack based on courier.

Courier (IMAP) doesn't have any way to affect mail delivery: the message
simply appears in the Maildir, delivered by the MTA.
There is another component of the Courier system, 'maildrop', which does
filtering of mail before dropping it into the Maildir. You could try
installing this, and configuring qmail to use maildrop for delivery instead
of dropping messages straight into the Maildir.
My own preferred MTA is Exim and it's possible to configure just about any
access policy or restriction you like, if you're prepared to play with its
string expansion language.

In case you're curious, the purpose of this unusual setup is to enable
third world scientists and researchers to gain access to electronic
journal websites via email. It works well for people that have their own
email client, but not for those that use Hotmail or Yahoo.. Which, as it
turns out, is a significant proportion of our users. Both of these
services mangle the pages delivered through our service. The hope is to
help these people by providing them with a simple webmail interface only
for accessing the journals. More info here:
http://www.ictp.trieste.it/ejournals/

I have some experience in doing that sort of thing (via UUCP links).
What I don't understand is, the above link seems to describe a service which
lets you retrieve web pages via E-mail. Anyone who is a hotmail/yahoo/
sqwebmail user clearly has direct web access anyway, so what is the benefit
to them of using this gateway?

Certain governments monitor and restrict the URLs that can be accessed via http. Perhaps they block the sites that people want to monitor, but not the relevant web email service?
--
Bill Michell
[EMAIL PROTECTED]

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