<s>
Mercury	B-Application
Mail	I-Application
Transport	I-Application
System	I-Application
(	O
Mercury	B-Application
MTS	I-Application
)	O
is	O
a	O
standards-compliant	O
mail	B-Protocol
server	I-Protocol
developed	O
by	O
David	O
Harris	O
,	O
who	O
also	O
develops	O
the	O
Pegasus	B-Application
Mail	I-Application
client	O
.	O
</s>
<s>
It	O
was	O
freeware	B-License
prior	O
to	O
January	O
2007	O
,	O
but	O
is	O
now	O
donationware	B-License
for	O
non-commercial	O
and	O
personal	O
use	O
,	O
and	O
shareware	B-License
for	O
other	O
uses	O
.	O
</s>
<s>
There	O
are	O
two	O
versions	O
of	O
Mercury	B-Application
with	O
similar	O
functionality	O
.	O
</s>
<s>
The	O
original	O
version	O
,	O
no	O
longer	O
under	O
development	O
,	O
is	O
a	O
set	O
of	O
NetWare	B-Application
Loadable	I-Application
Modules	I-Application
(	O
NLMs	B-Application
)	O
which	O
runs	O
on	O
all	O
versions	O
of	O
the	O
Novell	B-Operating_System
NetWare	I-Operating_System
network	B-Protocol
operating	I-Protocol
system	I-Protocol
(	O
NOS	O
)	O
from	O
3.x	O
to	O
6.x	O
(	O
current	O
)	O
.	O
</s>
<s>
It	O
worked	O
in	O
conjunction	O
with	O
MS-DOS	O
workstations	O
running	O
Pegasus	B-Application
Mail	I-Application
.	O
</s>
<s>
Mercury/32	O
is	O
a	O
Win32	B-Library
application	O
running	O
on	O
all	O
versions	O
of	O
Microsoft	B-Application
Windows	I-Application
from	O
Windows	B-Device
98	I-Device
and	O
Windows	B-Device
NT4	I-Device
to	O
the	O
latest	O
(	O
)	O
Windows	B-Application
Vista	I-Application
and	O
Windows	B-Device
Server	I-Device
2008	I-Device
(	O
Windows	B-Application
XP	I-Application
or	O
Windows	B-Application
Server	I-Application
2003	I-Application
are	O
recommended	O
)	O
.	O
</s>
<s>
Either	O
version	O
can	O
act	O
as	O
a	O
mail	B-Protocol
server	I-Protocol
for	O
a	O
LAN	O
;	O
both	O
have	O
additional	O
support	O
for	O
some	O
NetWare	B-Operating_System
LAN	O
features	O
.	O
</s>
<s>
Mercury	B-Application
is	O
a	O
fully	O
independent	O
mail	B-Protocol
server	I-Protocol
and	O
can	O
provide	O
email	O
services	O
to	O
all	O
standards-compliant	O
email	O
clients	O
,	O
such	O
as	O
Eudora	B-Operating_System
or	O
Microsoft	B-Application
Outlook	I-Application
.	O
</s>
<s>
Both	O
versions	O
of	O
Mercury	B-Application
are	O
highly	O
modular	O
,	O
allowing	O
support	O
for	O
different	O
sets	O
of	O
Internet	O
protocols	O
to	O
be	O
installed	O
as	O
required	O
.	O
</s>
<s>
Mercury	B-Application
can	O
also	O
be	O
installed	O
tightly	O
integrated	O
with	O
Pegasus	B-Application
Mail	I-Application
.	O
</s>
<s>
The	O
combination	O
of	O
Pegasus/Mercury	O
is	O
similar	O
to	O
the	O
mail	O
aspects	O
of	O
Microsoft	O
Outlook/Microsoft	O
Exchange	O
Server	O
.	O
</s>
<s>
Mercury	B-Application
was	O
originally	O
developed	O
to	O
handle	O
mail	O
,	O
both	O
internal	O
and	O
external	O
,	O
on	O
Netware	B-Operating_System
servers	O
in	O
either	O
bindery	O
or	O
NDS	B-Application
mode	O
;	O
Mercury	B-Application
ran	O
on	O
the	O
system	O
server	O
,	O
and	O
integrated	O
with	O
Pegasus	B-Application
mail	I-Application
running	O
on	O
MS-DOS	O
or	O
Windows	O
workstations	O
.	O
</s>
<s>
Mercury	B-Application
is	O
extremely	O
standards-compliant	O
,	O
supporting	O
all	O
major	O
Internet	O
mail-related	O
protocols	O
including	O
SMTP	B-Protocol
(	O
for	O
both	O
sending	O
and	O
receiving	O
mail	O
)	O
,	O
POP3	B-Protocol
and	O
IMAP	B-Protocol
.	O
</s>
<s>
The	O
Win32	B-Library
version	O
also	O
supports	O
a	O
dialup	O
connection	O
.	O
</s>
<s>
Mercury	B-Application
is	O
intended	O
to	O
be	O
largely	O
unobtrusive	O
and	O
needs	O
little	O
ongoing	O
maintenance	O
.	O
</s>
<s>
Mercury/32	O
,	O
while	O
not	O
open	B-Application
source	I-Application
software	I-Application
,	O
can	O
be	O
extended	O
by	O
anyone	O
as	O
the	O
development	O
documentation	O
is	O
free	O
and	O
publicly	O
available	O
at	O
the	O
pmail	B-Application
community	O
.	O
</s>
<s>
Below	O
are	O
some	O
well	O
known	O
extensions	O
,	O
some	O
bundled	O
with	O
Mercury/32	O
.	O
</s>
<s>
Development	O
on	O
the	O
version	O
for	O
Netware	B-Operating_System
had	O
basically	O
stopped	O
after	O
the	O
release	O
of	O
version	O
1.48	O
on	O
26	O
May	O
2000	O
,	O
and	O
replacement	O
by	O
the	O
Windows	O
version	O
was	O
recommended	O
.	O
</s>
<s>
(	O
A	O
security	O
patch	O
,	O
bringing	O
the	O
Mercury	B-Application
NLM	B-Application
version	O
to	O
1.49	O
,	O
was	O
released	O
in	O
August	O
2007	O
.	O
)	O
</s>
<s>
On	O
19	O
June	O
2009	O
David	O
Harris	O
announced	O
on	O
the	O
Pegasus	B-Application
Mail	I-Application
site	O
that	O
all	O
development	O
of	O
Pegasus	B-Application
Mail	I-Application
and	O
the	O
associated	O
Mercury	B-Application
program	O
could	O
only	O
continue	O
if	O
sufficient	O
users	O
would	O
commit	O
to	O
donating	O
US$50	O
annually	O
;	O
on	O
21	O
July	O
2009	O
he	O
said	O
that	O
there	O
had	O
been	O
a	O
good	O
start	O
.	O
</s>
<s>
Developer	O
David	O
Harris	O
said	O
in	O
April	O
2017	O
that	O
both	O
Pegasus	B-Application
Mail	I-Application
and	O
the	O
Mercury	B-Application
transport	O
system	O
were	O
under	O
active	O
and	O
major	O
further	O
development	O
.	O
</s>
<s>
In	O
July	O
2019	O
he	O
announced	O
that	O
the	O
"	O
Mercury	B-Application
v5	O
is	O
very	O
near	O
to	O
going	O
into	O
beta	O
"	O
.	O
</s>
<s>
On	O
25	O
December	O
2019	O
he	O
said	O
that	O
,	O
while	O
there	O
has	O
been	O
a	O
delay	O
due	O
to	O
health	O
issues	O
,	O
he	O
"	O
can	O
only	O
promise	O
you	O
that	O
there	O
is	O
progress	O
,	O
and	O
that	O
[	O
he	O
is ]	O
totally	O
committed	O
to	O
getting	O
these	O
new	O
versions	O
released	O
"	O
and	O
he	O
is	O
working	O
,	O
among	O
others	O
,	O
on	O
support	O
for	O
OAuth2	O
and	O
OpenSSL	B-Language
v	O
1.1.1	O
and	O
he	O
expects	O
"	O
to	O
have	O
builds	O
of	O
Mercury	B-Application
v5	O
available	O
to	O
testers	O
and	O
interested	O
users	O
in	O
the	O
first	O
three	O
months	O
of	O
the	O
New	O
Year	O
"	O
.	O
</s>
<s>
The	O
XAMPP	B-Application
is	O
an	O
initiative	O
by	O
Apache	B-Application
Friends	I-Application
to	O
develop	O
a	O
cross-platform	O
web	O
server	O
solution	O
pack	O
with	O
the	O
main	O
core	O
components	O
of	O
the	O
Apache	B-Application
HTTP	I-Application
Server	I-Application
,	O
MariaDB	B-Application
or	O
MySQL	B-Application
database	O
and	O
the	O
PHP	B-Application
and	O
perl	B-Language
interpreters	I-Language
,	O
intended	O
to	O
be	O
a	O
cross	O
platform	O
equivalent	O
of	O
the	O
LAMP	B-Application
stack	I-Application
used	O
on	O
Linux	O
.	O
</s>
<s>
While	O
mail	O
systems	O
are	O
natively	O
distributed	O
with	O
the	O
Linux	O
operating	O
system	O
this	O
was	O
not	O
the	O
case	O
for	O
the	O
Microsoft	B-Application
Windows	I-Application
platform	O
and	O
Apache	B-Application
Friends	I-Application
selected	O
Mercury	B-Application
MTS	I-Application
for	O
this	O
component	O
.	O
</s>
<s>
There	O
are	O
no	O
specific	O
documents	O
provided	O
by	O
Apache	B-Application
Friends	I-Application
for	O
installation	O
or	O
configuration	O
of	O
XAMPP	B-Application
or	O
its	O
components	O
with	O
the	O
concept	O
of	O
providing	O
information	O
via	O
FAQs	O
and	O
forums	O
,	O
however	O
some	O
third	O
party	O
descriptions	O
of	O
the	O
configuration	O
and	O
use	O
of	O
the	O
Mercury	B-Application
MTS	I-Application
component	O
are	O
available	O
.	O
</s>
