<s>
Dada	B-Application
Mail	I-Application
is	O
a	O
web-based	O
electronic	O
mailing	O
list	O
management	O
system	O
that	O
can	O
be	O
used	O
for	O
announcement	O
lists	O
.	O
</s>
<s>
Dada	B-Application
Mail	I-Application
is	O
written	O
in	O
Perl	B-Language
.	O
</s>
<s>
Dada	B-Application
Mail	I-Application
handles	O
Closed-Loop	O
Opt-in	O
subscriptions	O
and	O
Closed-Loop	O
Opt-out	O
unsubscriptions	O
,	O
sending	O
complex	O
announce-only	O
and/or	O
discussion	O
mailing	O
list	O
messages	O
,	O
archiving/viewing/searching/resending/syndicating	O
(	O
rss	O
,	O
atom	O
)	O
sent	O
messages	O
.	O
</s>
<s>
Unlike	O
more	O
traditional	O
electronic	O
mailing	O
list	O
software	O
,	O
like	O
Majordomo	B-Language
,	O
there	O
is	O
no	O
email	O
interface	O
to	O
send	O
commands	O
to	O
Dada	B-Application
Mail	I-Application
.	O
</s>
<s>
Dada	B-Application
Mail	I-Application
was	O
initially	O
written	O
in	O
December	O
1999	O
and	O
released	O
as	O
version	O
1.0	O
in	O
January	O
2000	O
,	O
between	O
Justin	O
's	O
first	O
and	O
second	O
semester	O
at	O
the	O
University	O
of	O
Colorado	O
at	O
Boulder	O
.	O
</s>
<s>
Its	O
original	O
name	O
was	O
Mojo	O
Mail	O
,	O
a	O
name	O
that	O
came	O
to	O
Justin	O
after	O
having	O
a	O
dream	O
about	O
making	O
a	O
successor	O
to	O
the	O
Majordomo	B-Language
program	O
,	O
after	O
struggling	O
with	O
that	O
program	O
's	O
email-based	O
interface	O
for	O
a	O
non-profit	O
client	O
.	O
</s>
<s>
The	O
name	O
was	O
changed	O
to	O
,	O
Dada	B-Application
Mail	I-Application
.	O
</s>
<s>
Justin	O
considers	O
Dada	B-Application
Mail	I-Application
a	O
conceptual	O
work	O
of	O
art	O
.	O
</s>
