<s>
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
(	O
previously	O
known	O
as	O
Exchange	O
Web	O
Connect	O
,	O
Outlook	B-Protocol
Web	I-Protocol
Access	I-Protocol
,	O
and	O
Outlook	B-Protocol
Web	I-Protocol
App	I-Protocol
)	O
is	O
a	O
personal	B-Application
information	I-Application
manager	I-Application
web	B-Application
app	I-Application
from	O
Microsoft	O
.	O
</s>
<s>
It	O
includes	O
a	O
web-based	B-Protocol
email	I-Protocol
client	I-Protocol
,	O
a	O
calendar	B-Application
tool	I-Application
,	O
a	O
contact	B-Operating_System
manager	I-Operating_System
,	O
and	O
a	O
task	O
manager	O
.	O
</s>
<s>
It	O
also	O
includes	O
add-in	O
integration	O
,	O
Skype	O
on	O
the	O
web	O
,	O
and	O
alerts	O
as	O
well	O
as	O
unified	O
themes	O
that	O
span	O
across	O
all	O
the	O
web	B-Application
apps	I-Application
.	O
</s>
<s>
It	O
is	O
included	O
in	O
Exchange	B-Operating_System
Server	I-Operating_System
2016	O
(	O
and	O
later	O
)	O
,	O
and	O
Exchange	O
Online	O
(	O
a	O
component	O
of	O
Office	B-Operating_System
365	I-Operating_System
.	O
)	O
</s>
<s>
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
is	O
available	O
to	O
Office	B-Operating_System
365	I-Operating_System
and	O
Exchange	O
Online	O
subscribers	O
,	O
and	O
is	O
included	O
with	O
the	O
on-premises	O
Exchange	B-Operating_System
Server	I-Operating_System
,	O
to	O
enable	O
users	O
to	O
connect	O
to	O
their	O
email	O
accounts	O
via	O
a	O
web	B-Application
browser	I-Application
,	O
without	O
requiring	O
the	O
installation	O
of	O
Microsoft	B-Application
Outlook	I-Application
or	O
other	O
email	B-Protocol
clients	I-Protocol
.	O
</s>
<s>
In	O
case	O
of	O
Exchange	B-Operating_System
Server	I-Operating_System
,	O
it	O
is	O
hosted	O
on	O
a	O
local	O
intranet	B-General_Concept
and	O
requires	O
a	O
network	O
connection	O
to	O
the	O
Exchange	B-Operating_System
Server	I-Operating_System
for	O
users	O
to	O
work	O
with	O
e-mail	O
,	O
address	B-Operating_System
book	I-Operating_System
,	O
calendars	B-Application
and	O
task	O
.	O
</s>
<s>
The	O
Exchange	O
Online	O
version	O
,	O
which	O
can	O
be	O
bought	O
either	O
independently	O
or	O
through	O
Office	B-Operating_System
365	I-Operating_System
licensing	O
program	O
,	O
is	O
hosted	O
on	O
Microsoft	O
servers	O
on	O
the	O
World	O
Wide	O
Web	O
.	O
</s>
<s>
Outlook	B-Protocol
Web	I-Protocol
Access	I-Protocol
was	O
created	O
in	O
1995	O
by	O
Microsoft	O
Program	O
Manager	O
Thom	O
McCann	O
on	O
the	O
Exchange	B-Operating_System
Server	I-Operating_System
team	O
.	O
</s>
<s>
The	O
first	O
customer	O
version	O
was	O
shipped	O
as	O
part	O
of	O
the	O
Exchange	B-Operating_System
Server	I-Operating_System
5.0	O
release	O
in	O
early	O
1997	O
.	O
</s>
<s>
The	O
first	O
component	O
to	O
allow	O
client-side	O
scripts	O
to	O
issue	O
HTTP	O
requests	O
(	O
XMLHTTP	B-Protocol
)	O
was	O
originally	O
written	O
by	O
the	O
Outlook	B-Protocol
Web	I-Protocol
Access	I-Protocol
team	O
.	O
</s>
<s>
It	O
soon	O
became	O
a	O
part	O
of	O
Internet	B-Protocol
Explorer	I-Protocol
5	I-Protocol
.	O
</s>
<s>
Renamed	O
XMLHttpRequest	B-Protocol
and	O
standardized	O
by	O
the	O
World	O
Wide	O
Web	O
Consortium	O
,	O
it	O
has	O
since	O
become	O
one	O
of	O
the	O
cornerstones	O
of	O
the	O
Ajax	B-General_Concept
technology	O
used	O
to	O
build	O
advanced	O
web	B-Application
apps	I-Application
.	O
</s>
<s>
Outlook	B-Protocol
Web	I-Protocol
Access	I-Protocol
was	O
later	O
renamed	O
Outlook	B-Protocol
Web	I-Protocol
App	I-Protocol
.	O
</s>
<s>
An	O
update	O
on	O
August	O
4	O
,	O
2015	O
renamed	O
OWA	O
to	O
"	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
"	O
,	O
often	O
referred	O
to	O
in	O
brief	O
as	O
simply	O
"	O
Outlook	O
"	O
.	O
</s>
<s>
Mail	O
is	O
the	O
webmail	B-Protocol
component	O
of	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
.	O
</s>
<s>
It	O
can	O
connect	O
to	O
other	O
services	O
such	O
as	O
GitHub	B-Application
and	O
Twitter	B-Application
through	O
Office	B-Operating_System
365	I-Operating_System
Connectors	O
.	O
</s>
<s>
Actionable	O
Messages	O
in	O
emails	O
allows	O
a	O
user	O
to	O
complete	O
a	O
task	O
from	O
within	O
the	O
email	O
,	O
such	O
as	O
retweeting	O
a	O
Tweet	O
on	O
Twitter	B-Application
or	O
setting	O
a	O
meeting	O
date	O
on	O
a	O
calendar	B-Application
.	O
</s>
<s>
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
supports	O
S/MIME	B-Protocol
and	O
includes	O
features	O
for	O
managing	O
calendars	B-Application
,	O
contacts	B-Operating_System
,	O
tasks	O
,	O
documents	O
(	O
used	O
with	O
SharePoint	B-Protocol
or	O
Office	O
Web	B-Application
Apps	I-Application
)	O
,	O
and	O
other	O
mailbox	O
content	O
.	O
</s>
<s>
In	O
the	O
Exchange	O
2007	O
release	O
,	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
(	O
still	O
called	O
Outlook	B-Protocol
Web	I-Protocol
App	I-Protocol
at	O
the	O
time	O
)	O
also	O
offers	O
read-only	O
access	O
to	O
documents	O
stored	O
in	O
SharePoint	B-Protocol
sites	O
and	O
network	O
UNC	O
shares	O
.	O
</s>
<s>
Calendar	B-Application
is	O
the	O
calendaring	B-Application
component	O
of	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
.	O
</s>
<s>
With	O
the	O
update	O
,	O
Microsoft	O
added	O
a	O
weather	O
forecast	O
directly	O
in	O
the	O
Calendar	B-Application
,	O
as	O
well	O
as	O
icons	O
(	O
or	O
"	O
charms	O
"	O
)	O
as	O
visual	O
cues	O
for	O
an	O
event	O
.	O
</s>
<s>
In	O
addition	O
,	O
email	O
reminders	O
came	O
to	O
all	O
events	O
,	O
and	O
a	O
special	O
Birthday	O
and	O
Holiday	O
event	O
calendars	B-Application
are	O
created	O
automatically	O
.	O
</s>
<s>
Calendars	B-Application
can	O
be	O
shared	O
and	O
there	O
are	O
multiple	O
views	O
such	O
as	O
day	O
,	O
week	O
,	O
month	O
,	O
and	O
today	O
.	O
</s>
<s>
Another	O
view	O
is	O
work	O
week	O
which	O
includes	O
Mondays	O
through	O
Fridays	O
in	O
the	O
calendar	B-Application
view	O
.	O
</s>
<s>
Calendar	B-Application
's	O
"	O
Board	O
View	O
"	O
feature	O
allows	O
for	O
a	O
customizable	O
calendar	B-Application
with	O
widgets	O
such	O
as	O
Goal	O
,	O
Calendar	B-Application
,	O
Tasks	O
and	O
Tips	O
.	O
</s>
<s>
Calendar	B-Application
details	O
can	O
be	O
added	O
with	O
HTML	O
and	O
rich-text	O
editing	O
,	O
and	O
files	O
can	O
be	O
attached	O
to	O
calendar	B-Application
events	O
and	O
appointments	O
.	O
</s>
<s>
People	O
is	O
the	O
contact	B-Operating_System
manager	I-Operating_System
component	O
of	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
.	O
</s>
<s>
A	O
user	O
can	O
search	O
and	O
edit	O
existing	O
contacts	B-Operating_System
,	O
as	O
well	O
as	O
create	O
new	O
ones	O
.	O
</s>
<s>
Contacts	B-Operating_System
can	O
be	O
placed	O
into	O
folders	O
and	O
duplicate	O
contacts	B-Operating_System
can	O
be	O
linked	O
from	O
multiple	O
sources	O
such	O
as	O
LinkedIn	O
or	O
Twitter	B-Application
.	O
</s>
<s>
Contacts	B-Operating_System
can	O
be	O
imported	O
as	O
well	O
as	O
placed	O
into	O
a	O
list	O
that	O
can	O
be	O
utilized	O
when	O
composing	O
an	O
email	O
in	O
Outlook	O
Mail	O
.	O
</s>
<s>
People	O
can	O
also	O
sync	O
with	O
friends	O
and	O
connections	O
lists	O
on	O
LinkedIn	O
,	O
Facebook	O
,	O
and	O
Twitter	B-Application
.	O
</s>
<s>
To	O
Do	O
was	O
originally	O
launched	O
as	O
Tasks	O
for	O
Outlook	B-Protocol
Web	I-Protocol
App	I-Protocol
.	O
</s>
<s>
Microsoft	O
was	O
slowly	O
rolling	O
out	O
a	O
preview	O
of	O
Tasks	O
to	O
its	O
consumer-based	O
Outlook.com	B-Operating_System
service	O
that	O
in	O
May	O
2015	O
,	O
was	O
announced	O
to	O
be	O
moving	O
to	O
the	O
Office	B-Operating_System
365	I-Operating_System
infrastructure	O
.	O
</s>
<s>
It	O
was	O
initially	O
a	O
part	O
of	O
Calendar	B-Application
as	O
a	O
view	O
.	O
</s>
<s>
Microsoft	O
has	O
separated	O
the	O
services	O
into	O
its	O
own	O
web	B-Application
app	I-Application
in	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
.	O
</s>
<s>
In	O
a	O
post	O
on	O
the	O
Office	O
Blogs	O
in	O
2015	O
,	O
Microsoft	O
announced	O
that	O
Outlook	B-Protocol
Web	I-Protocol
App	I-Protocol
would	O
be	O
renamed	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
and	O
that	O
Tasks	O
would	O
move	O
under	O
that	O
brand	O
.	O
</s>
<s>
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
has	O
had	O
two	O
interfaces	O
available	O
:	O
one	O
with	O
a	O
complete	O
feature	O
set	O
(	O
known	O
as	O
Premium	O
)	O
and	O
one	O
with	O
reduced	O
functionality	O
(	O
known	O
as	O
Light	O
or	O
sometimes	O
Lite	O
)	O
.	O
</s>
<s>
Prior	O
to	O
Exchange	O
2010	O
,	O
the	O
Premium	O
client	O
required	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
Exchange	O
2000	O
and	O
2003	O
require	O
Internet	B-Protocol
Explorer	I-Protocol
5	I-Protocol
and	O
later	O
,	O
and	O
Exchange	O
2007	O
requires	O
Internet	B-Application
Explorer	I-Application
6	I-Application
and	O
later	O
.	O
</s>
<s>
Exchange	O
2010	O
supports	O
a	O
wider	O
range	O
of	O
web	B-Application
browsers	I-Application
:	O
Internet	B-Application
Explorer	I-Application
7	I-Application
or	O
later	O
,	O
Firefox	B-Application
3.01	O
or	O
later	O
,	O
Chrome	B-Application
,	O
or	O
Safari	B-Application
3.1	O
or	O
later	O
.	O
</s>
<s>
However	O
,	O
Exchange	O
2010	O
restricts	O
its	O
Firefox	B-Application
and	O
Safari	B-Application
support	O
to	O
macOS	B-Application
and	O
Linux	B-Application
.	O
</s>
<s>
In	O
Exchange	O
2013	O
,	O
these	O
browser	B-Application
restrictions	O
were	O
lifted	O
.	O
</s>
<s>
In	O
Exchange	O
2010	O
and	O
earlier	O
,	O
the	O
Light	O
user	B-Application
interface	I-Application
is	O
rendered	O
for	O
browsers	B-Application
other	O
than	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
The	O
basic	O
interface	O
did	O
not	O
support	O
search	O
on	O
Exchange	B-Operating_System
Server	I-Operating_System
2003	O
.	O
</s>
<s>
In	O
Exchange	B-Operating_System
Server	I-Operating_System
2007	O
,	O
the	O
Light	O
interface	O
supported	O
searching	O
mail	O
items	O
;	O
managing	O
contacts	B-Operating_System
and	O
the	O
calendar	B-Application
was	O
also	O
improved	O
.	O
</s>
<s>
The	O
ability	O
to	O
add	O
new	O
accounts	O
to	O
Outlook	B-Protocol
on	I-Protocol
the	I-Protocol
web	I-Protocol
using	O
the	O
Connected	O
accounts	O
feature	O
was	O
removed	O
in	O
September	O
2018	O
and	O
all	O
connected	O
accounts	O
stopped	O
synchronizing	O
email	O
the	O
following	O
month	O
.	O
</s>
