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From: jordan@ucb-arpa.ARPA (Jordan M. Hayes)
Newsgroups: net.mail.headers
Subject: Re:  Can a user \"prod\" a remote host?
Message-ID: <4178@brl-smoke.ARPA>
Date: Fri, 26-Sep-86 12:39:12 EDT
Article-I.D.: brl-smok.4178
Posted: Fri Sep 26 12:39:12 1986
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	From: Rob Austein <SRA@XX.LCS.MIT.EDU>

	In theory SMTP provides a facility that could be used the way
	you describe, the TURN command.  To use it you'd call up the
	host you wanted to prod, negotiate a TURN (at which point you
	turn into an SMTP "server" instead of an SMTP "user"), then get
	instant gratification as the foreign machine dumped all its
	mail out to you.

Yes, but I think the main reason this has never been implemented is for
security reasons ... I could find a machine that does a lot of queueing
on a regular basis (ucbvax for one queues a lot, since the load is
usually above the "safe" threshold for sendmail to run to completion)
and telnet to port 25 on your machine and issue a TURN and I steal all
the mail headed for that machine ... not _too_ cool ...

/jordan