<s>
Message	B-Protocol
Handling	I-Protocol
System	I-Protocol
(	O
MHS	O
)	O
is	O
an	O
important	O
early	O
email	O
protocol	O
developed	O
by	O
Action	O
Technologies	O
,	O
Inc	O
.	O
(	O
ATI	O
)	O
in	O
1986	O
.	O
</s>
<s>
Para-Mail	B-Protocol
-	O
Paradox	O
Development	O
introduced	O
version	O
2.0	O
along	O
with	O
Novell	O
at	O
Comdex	O
1986	O
.	O
</s>
<s>
Pegasus	B-Application
Mail	I-Application
-	O
A	O
free	O
mail	O
client	O
,	O
this	O
used	O
MHS	O
its	O
native	O
protocol	O
.	O
</s>
<s>
FirstMail	B-Application
-	O
A	O
cut-down	O
version	O
of	O
Pegasus	B-Application
Mail	I-Application
,	O
bundled	O
with	O
some	O
versions	O
of	O
NetWare	B-Operating_System
.	O
</s>
<s>
Futurus	O
TEAM	O
-	O
Early	O
groupware	B-Application
package	O
offering	O
an	O
MHS	O
compliant	O
email	O
client	O
.	O
</s>
<s>
MHS	O
was	O
a	O
very	O
'	O
open	O
 '	O
system	O
,	O
and	O
this	O
,	O
with	O
Novell	O
's	O
encouragement	O
,	O
made	O
it	O
popular	O
in	O
the	O
early	O
1990s	O
as	O
a	O
'	O
glue	O
 '	O
between	O
not	O
only	O
the	O
proprietary	O
email	O
systems	O
of	O
the	O
day	O
such	O
as	O
PROFS	B-Application
,	O
SNADS	B-Architecture
,	O
MCI	B-Application
,	O
3+Mail	O
,	O
cc:Mail	B-Application
,	O
Para-Mail	B-Protocol
and	O
Microsoft	B-Application
Mail	I-Application
,	O
but	O
also	O
the	O
competing	O
standards-based	O
SMTP	B-Protocol
and	O
X.400	B-Protocol
.	O
</s>
<s>
However	O
,	O
by	O
1996	O
it	O
was	O
very	O
clear	O
that	O
SMTP	B-Protocol
over	O
the	O
Internet	O
would	O
take	O
over	O
this	O
role	O
.	O
</s>
<s>
Novell	O
became	O
increasingly	O
less	O
supportive	O
after	O
their	O
1994	O
purchase	O
of	O
WordPerfect	B-Application
as	O
they	O
worked	O
to	O
transform	O
WordPerfect	B-Application
Office	O
into	O
GroupWise	O
.	O
</s>
<s>
At	O
about	O
the	O
same	O
time	O
,	O
confidence	O
in	O
the	O
future	O
of	O
X.400	B-Protocol
collapsed	O
and	O
SMTP	B-Protocol
email	O
across	O
the	O
public	O
internet	O
became	O
the	O
compelling	O
choice	O
for	O
mail	O
between	O
unrelated	O
organisations	O
,	O
replacing	O
MHS	O
's	O
former	O
"	O
glue	O
"	O
role	O
.	O
</s>
