<s>
On	O
Usenet	B-Application
,	O
the	O
Usenet	B-Architecture
Death	I-Architecture
Penalty	I-Architecture
(	O
UDP	O
)	O
is	O
a	O
final	O
penalty	O
that	O
may	O
be	O
issued	O
against	O
Internet	O
service	O
providers	O
or	O
single	O
users	O
who	O
produce	O
too	O
much	O
spam	O
or	O
fail	O
to	O
adhere	O
to	O
Usenet	B-Application
standards	O
.	O
</s>
<s>
It	O
is	O
named	O
after	O
the	O
death	O
penalty	O
(	O
the	O
state-sanctioned	O
killing	O
of	O
a	O
person	O
as	O
punishment	O
for	O
a	O
crime	O
)	O
,	O
as	O
it	O
causes	O
the	O
banned	O
user	O
or	O
provider	O
to	O
be	O
unable	O
to	O
use	O
Usenet	B-Application
,	O
essentially	O
"	O
killing	O
"	O
their	O
service	O
.	O
</s>
<s>
Messages	O
that	O
fall	O
under	O
the	O
jurisdiction	O
of	O
a	O
Usenet	B-Architecture
Death	I-Architecture
Penalty	I-Architecture
will	O
be	O
cancelled	O
.	O
</s>
<s>
Cancelled	O
messages	O
are	O
deleted	O
from	O
Usenet	B-Application
servers	O
and	O
not	O
allowed	O
to	O
propagate	O
.	O
</s>
<s>
This	O
causes	O
users	O
on	O
the	O
affected	O
ISP	O
to	O
be	O
unable	O
to	O
post	O
to	O
Usenet	B-Application
,	O
and	O
it	O
puts	O
pressure	O
on	O
the	O
ISP	O
to	O
change	O
their	O
policies	O
.	O
</s>
<s>
There	O
are	O
three	O
types	O
of	O
Usenet	B-Architecture
Death	I-Architecture
Penalty	I-Architecture
:	O
</s>
<s>
Active	O
:	O
with	O
an	O
active	O
UDP	O
,	O
messages	O
that	O
fall	O
under	O
the	O
UDP	O
will	O
be	O
automatically	O
cancelled	O
by	O
third	O
parties	O
or	O
their	O
agents	O
,	O
such	O
as	O
by	O
using	O
cancelbots	B-Protocol
.	O
</s>
<s>
Partial	O
:	O
a	O
partial	O
UDP	O
applies	O
only	O
to	O
a	O
certain	O
subset	O
of	O
newsgroups	B-Application
,	O
not	O
the	O
entire	O
Usenet	B-Application
newsgroup	I-Application
hierarchy	O
.	O
</s>
