= U =
Usenet Death Penalty
[Usenet] A sanction against sites that
habitually spew Usenet spam. This can be either passive or
active. A passive UDP refers to the dropping of all postings by a
particular domain so as to inhibit propagation. An active UDP
refers to third-party cancellation of all postings by the UDPed
domain. A partial UDP is one which applies only to certain
newsgroups or hierarchies in Usenet. Compare Internet Death Penalty, with which this term is sometimes confused.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.