<s>
BlitzMail	B-Application
was	O
an	O
e-mail	O
system	O
used	O
at	O
Dartmouth	O
College	O
in	O
Hanover	O
,	O
New	O
Hampshire	O
,	O
United	O
States	O
.	O
</s>
<s>
Use	O
of	O
BlitzMail	B-Application
ended	O
in	O
2011	O
,	O
in	O
favor	O
of	O
a	O
Microsoft	O
suite	O
of	O
email/online	O
collaboration	O
programs	O
.	O
</s>
<s>
BlitzMail	B-Application
was	O
developed	O
by	O
Dartmouth	O
in	O
1987	O
and	O
went	O
live	O
in	O
the	O
summer	O
of	O
1988	O
.	O
</s>
<s>
The	O
name	O
BlitzMail	B-Application
started	O
as	O
a	O
joke	O
among	O
its	O
programmers	O
,	O
as	O
it	O
had	O
to	O
be	O
developed	O
quickly	O
.	O
</s>
<s>
Some	O
non-Dartmouth	O
BlitzMail	B-Application
deployments	O
include	O
Valley.Net	O
,	O
an	O
internet	O
service	O
provider	O
in	O
New	O
England	O
's	O
Upper	O
Valley	O
region	O
and	O
,	O
from	O
1991	O
to	O
2005	O
,	O
Reed	O
College	O
in	O
Portland	O
,	O
Oregon	O
.	O
</s>
<s>
The	O
first	O
versions	O
of	O
the	O
client	O
ran	O
only	O
on	O
the	O
Apple	B-Device
Macintosh	I-Device
operating	O
system	O
.	O
</s>
<s>
The	O
client	O
was	O
ported	O
to	O
Windows	B-Application
around	O
the	O
time	O
of	O
Windows	B-Application
3.1	O
.	O
</s>
<s>
Dartmouth	O
's	O
Computing	O
Services	O
rolled	O
out	O
an	O
updated	O
BlitzMail	B-Application
client	O
for	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
that	O
featured	O
encrypted	O
client-server	O
communications	O
.	O
</s>
<s>
Recent	O
releases	O
of	O
the	O
client	O
have	O
experimental	O
support	O
for	O
rendering	O
(	O
but	O
not	O
composing	O
)	O
HTML-based	O
messages	O
.	O
</s>
<s>
A	O
project	O
at	O
Dartmouth-Hitchcock	O
Medical	O
Center	O
continued	O
to	O
use	O
the	O
Windows	B-Application
BlitzMail	B-Application
service	O
,	O
which	O
was	O
no	O
longer	O
being	O
developed	O
or	O
supported	O
.	O
</s>
<s>
Dartmouth-Hitchcock	O
Medical	O
Center	O
BlitzMail	B-Application
servers	O
were	O
scheduled	O
to	O
be	O
deactivated	O
on	O
October	O
1	O
,	O
2012	O
.	O
</s>
<s>
BlitzMail	B-Application
became	O
the	O
primary	O
means	O
of	O
communication	O
of	O
all	O
types	O
on	O
the	O
Dartmouth	O
College	O
campus	O
,	O
between	O
students	O
,	O
professors	O
,	O
and	O
administrators	O
.	O
</s>
<s>
In	O
the	O
mid-1990s	O
,	O
Mac	B-Device
Classic	O
public	O
terminals	O
were	O
commonly	O
referred	O
to	O
as	O
"	O
Blitzcheckers.	O
"	O
</s>
<s>
While	O
BlitzMail	B-Application
is	O
no	O
longer	O
used	O
,	O
students	O
as	O
of	O
2020	O
still	O
use	O
"	O
blitz	O
"	O
instead	O
of	O
"	O
email.	O
"	O
</s>
<s>
Until	O
the	O
mid-2000s	O
,	O
largely	O
due	O
to	O
poor	O
cellular	O
reception	O
on	O
campus	O
,	O
many	O
students	O
opted	O
to	O
use	O
BlitzMail	B-Application
rather	O
than	O
cellular	O
phones	O
,	O
but	O
this	O
trend	O
decreased	O
as	O
service	O
improved	O
on	O
campus	O
.	O
</s>
<s>
The	O
BlitzMail	B-Application
client	O
was	O
graphical	O
,	O
and	O
ran	O
on	O
Windows	B-Application
and	O
Macintosh	B-Device
computers	I-Device
.	O
</s>
<s>
Several	O
Java	B-Language
implementations	O
exist	O
,	O
as	O
well	O
as	O
web-based	O
clients	O
,	O
such	O
as	O
NetBlitz	O
and	O
WebBlitz	O
.	O
</s>
<s>
The	O
client	O
has	O
not	O
had	O
major	O
updates	O
since	O
the	O
late	O
1990s	O
,	O
with	O
the	O
exception	O
of	O
a	O
port	O
to	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
.	O
</s>
<s>
The	O
client	O
does	O
not	O
officially	O
support	O
HTML-based	O
e-mail	O
,	O
dealing	O
only	O
in	O
plaintext	O
.	O
</s>
<s>
(	O
HTML	B-Language
files	I-Language
are	O
viewed	O
as	O
attachments	O
.	O
)	O
</s>
<s>
There	O
is	O
unofficial	O
support	O
to	O
allow	O
HTML-based	O
email	O
to	O
be	O
opened	O
within	O
the	O
client	O
normally	O
.	O
</s>
<s>
BlitzMail	B-Application
also	O
acted	O
as	O
a	O
pseudo-instant	O
messaging	O
client	O
.	O
</s>
<s>
BlitzMail	B-Application
speaks	O
its	O
own	O
protocol	O
between	O
client	O
and	O
server	O
,	O
meaning	O
that	O
only	O
the	O
BlitzMail	B-Application
client	O
can	O
utilize	O
the	O
full	O
feature-set	O
of	O
the	O
server	O
.	O
</s>
<s>
Messages	O
entering	O
and	O
leaving	O
the	O
BlitzMail	B-Application
domain	O
are	O
handled	O
via	O
Simple	B-Protocol
Mail	I-Protocol
Transfer	I-Protocol
Protocol	I-Protocol
(	O
SMTP	B-Protocol
)	O
.	O
</s>
<s>
,	O
patches	O
were	O
available	O
that	O
allowed	O
clients	O
to	O
connect	O
to	O
a	O
BlitzMail	B-Application
server	O
via	O
POP3	B-Protocol
and	O
IMAP	B-Protocol
(	O
with	O
SSL	B-Protocol
.	O
)	O
</s>
<s>
The	O
client	O
communicates	O
to	O
the	O
server	O
on	O
TCP	B-Protocol
ports	O
2151	O
and	O
1119	O
and	O
the	O
notification	O
service	O
runs	O
on	O
UDP	B-Protocol
port	O
2154	O
.	O
</s>
<s>
In	O
2002	O
,	O
SpamAssassin	B-Language
functionality	O
was	O
added	O
to	O
BlitzMail	B-Application
.	O
</s>
<s>
The	O
DND	O
server	O
was	O
also	O
modified	O
to	O
allow	O
LDAP	B-Protocol
lookups	O
.	O
</s>
<s>
The	O
BlitzMail	B-Application
and	O
DND	O
servers	O
run	O
on	O
DEC	O
Unix	B-Application
and	O
many	O
Linux	B-Application
flavors	O
.	O
</s>
<s>
The	O
BlitzMail	B-Application
servers	O
have	O
run	O
on	O
a	O
variety	O
of	O
hardware	O
at	O
Dartmouth	O
.	O
</s>
<s>
Later	O
,	O
the	O
servers	O
were	O
migrated	O
to	O
DEC	B-Device
3000	I-Device
AXP	I-Device
Model	O
300s	O
.	O
</s>
<s>
A	O
Python	B-Language
library	B-Library
implementation	O
called	O
PyBlitz	O
was	O
released	O
in	O
2006	O
by	O
Michael	O
Fromberger	O
.	O
</s>
<s>
The	O
BlitzMail	B-Application
client	O
and	O
server	O
software	O
were	O
available	O
under	O
an	O
BSD-style	B-Operating_System
(	O
with	O
ad	O
clause	O
)	O
license	O
.	O
</s>
