As per Relevance of the word destination, we have this rfc below:

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Network Working Group Jon Postel (SRI-ARC
Request for Comments: 706 Nov 1975
NIC #33861



On the Junk Mail

In the ARPA Network Host/IMP interface protocol there is
mechanism for the Host to selectively refuse messages. This
that a Host which desires to receive some particular messages
read all messages addressed to it. Such a Host could be sent
messages by a malfunctioning Host. This would constitute a denial
service to the normal users of this Host. Both the local users
the network communication could suffer. The services denied are
processor time consumed in examining the undesired messages
rejecting them, and the loss of network thruput or increased
due to the unnecessary busyness of the network

It would be useful for a Host to be able to decline messages
sources it believes are misbehaving or are simply annoying. If
Host/IMP interface protocol allowed the Host to say to the
"refuse messages from Host X", the IMPs could discard the
messages at their earliest opportunity returning a "refused"
to the offending Host

How the IMPs might do this is an open issue -- here are
possibilities

The destination IMP would keep a list (per local Host) of
to refuse (this has the disadvantage of keeping the
busy).

The destination IMP on receiving the "refuse messages from
X" message forwards the message to the source IMP (the IMP
to Host X). That IMP keeps a list (per local Host)
destinations that are refusing messages from this source Host

This restriction on messages might be removed by a destination
either by sending a "accept messages from Host X" message to
IMP, or by resetting its Host/IMP interface

A Host might make use of such a facility by measuring, per source
the number of undesired messages per unit time, if this
exceeds a threshold then the Host could issue the "refuse
from Host X" message to the IMP

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if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.



RFC documents can be found at I.E.T.F.



Relevance System Copyright © 2002 Spectrum WorldResearch
other technical nosh by ServerMasters Corporation
collaboration of BobX

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