How to set up sendmail to accept and discard all email?

[Tony Finch]

Antony Stone <Antony at SOFT-SOLUTIONS.CO.UK> wrote:
>
>I know I can get the MS machine to send all its mails to a single server
>easily enough, either by using a smart relay, or by redirecting packets with
>a firewall, but is there some simple way I can configure sendmail on the
>third machine so that it appears as an open relay (that bit's easy) and
>accepts all mail, but then immediately discards it?

Apart from Julian's Perl program I believe there's an SMTP daemon that
is designed to throw away email, but I can't remember its name. Or you
can use the following five-line Exim configutation:

acl_smtp_rcpt = accept
begin routers
blackhole:
        driver = redirect
        data = :blackhole:

Tony.
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