<s>
The	O
JSON	B-Protocol
Meta	I-Protocol
Application	I-Protocol
Protocol	I-Protocol
(	O
JMAP	B-Protocol
)	O
is	O
a	O
set	O
of	O
related	O
open	O
Internet	O
Standard	O
protocols	O
for	O
handling	O
email	O
.	O
</s>
<s>
JMAP	B-Protocol
is	O
implemented	O
using	O
JSON	B-General_Concept
APIs	B-General_Concept
over	O
HTTP	B-Protocol
and	O
has	O
been	O
developed	O
as	O
an	O
alternative	O
to	O
IMAP/SMTP	O
and	O
proprietary	O
email	O
APIs	B-General_Concept
such	O
as	O
Gmail	O
and	O
Outlook	B-Application
.	O
</s>
<s>
Additional	O
protocols	O
and	O
data	O
models	O
being	O
built	O
on	O
top	O
of	O
the	O
core	O
of	O
JMAP	B-Protocol
for	O
handling	O
contacts	O
and	O
calendar	O
synchronization	O
are	O
meant	O
to	O
be	O
potential	O
replacements	O
for	O
CardDAV	B-Protocol
and	O
CalDAV	B-Protocol
,	O
and	O
other	O
support	O
is	O
currently	O
in	O
the	O
works	O
.	O
</s>
<s>
Developers	O
Bron	O
Gondwana	O
and	O
Neil	O
Jenkins	O
wrote	O
on	O
the	O
Internet	O
Engineering	O
Task	O
Force	O
(	O
IETF	O
)	O
news	O
site	O
that	O
"	O
the	O
current	O
open	O
protocols	O
connecting	O
email	O
clients	O
and	O
servers	O
,	O
such	O
as	O
IMAP	B-Protocol
,	O
were	O
not	O
designed	O
for	O
the	O
modern	O
age.	O
"	O
</s>
<s>
They	O
cited	O
IMAP	B-Protocol
's	O
complexity	O
,	O
high	O
resource	O
use	O
,	O
poor	O
adaptability	O
to	O
the	O
network	O
constraints	O
of	O
modern	O
mobile	O
devices	O
,	O
and	O
complex	O
interactions	O
with	O
other	O
protocols	O
like	O
SMTP	B-Protocol
,	O
CalDAV	B-Protocol
,	O
and	O
CardDAV	B-Protocol
.	O
</s>
<s>
They	O
believe	O
this	O
has	O
resulted	O
in	O
a	O
stagnation	O
in	O
the	O
quality	O
of	O
(	O
especially	O
free	B-Application
)	O
email	O
clients	O
,	O
and	O
the	O
creation	O
of	O
proprietary	O
protocols	O
to	O
overcome	O
these	O
limitations	O
,	O
for	O
instance	O
MAPI	B-Protocol
,	O
used	O
by	O
Microsoft	O
's	O
Exchange	B-Operating_System
Server	I-Operating_System
and	O
Outlook	B-Application
email	O
products	O
.	O
</s>
<s>
Gondwana	O
and	O
Jenkins	O
wrote	O
,	O
"	O
JMAP	B-Protocol
is	O
the	O
result	O
of	O
efforts	O
to	O
address	O
shortcomings	O
[	O
in	O
existing	O
protocols ]	O
,	O
providing	O
a	O
modern	O
,	O
efficient	O
,	O
easy-to-use	O
API	B-General_Concept
,	O
built	O
on	O
many	O
years	O
of	O
experience	O
and	O
field	O
testing.	O
"	O
</s>
<s>
The	O
protocol	O
was	O
developed	O
with	O
the	O
intention	O
of	O
providing	O
a	O
modern	O
open	O
,	O
reliable	O
,	O
and	O
easy-to-use	O
solution	O
,	O
and	O
as	O
a	O
result	O
it	O
relies	O
heavily	O
upon	O
the	O
commonly-implemented	O
JSON	B-General_Concept
(	O
JavaScript	B-General_Concept
Object	I-General_Concept
Notation	I-General_Concept
)	O
.	O
</s>
<s>
According	O
to	O
Gondwana	O
of	O
Fastmail	O
—	O
which	O
has	O
been	O
a	O
leading	O
developer	O
of	O
the	O
protocol	O
--	O
"	O
The	O
use	O
of	O
JSON	B-General_Concept
and	O
HTTP	B-Protocol
as	O
the	O
basis	O
of	O
JMAP	B-Protocol
was	O
always	O
a	O
key	O
point	O
—	O
it	O
means	O
that	O
people	O
wanting	O
to	O
build	O
something	O
on	O
top	O
of	O
email	O
do	O
n’t	O
have	O
to	O
re-implement	O
complex	O
parsers	O
or	O
find	O
a	O
software	O
library	O
in	O
order	O
to	O
get	O
started.	O
"	O
</s>
<s>
After	O
atmail	O
decided	O
to	O
implement	O
JMAP	B-Protocol
,	O
CEO	O
Dave	O
Richards	O
wrote	O
in	O
2018	O
that	O
"	O
the	O
complexities	O
required	O
to	O
implement	O
IMAP	B-Protocol
in	O
both	O
user	O
and	O
server	O
side	O
software	O
has	O
resulted	O
in	O
user	O
difficulties	O
and	O
a	O
lack	O
of	O
software	O
options	O
,	O
along	O
with	O
a	O
rigid	O
user	O
experience	O
...	O
The	O
new	O
JMAP	B-Protocol
protocol	O
solves	O
the	O
existing	O
issues	O
and	O
is	O
modular	O
enough	O
to	O
take	O
advantage	O
of	O
future	O
technology	O
.	O
</s>
<s>
JMAP	B-Protocol
makes	O
email	O
better.	O
"	O
</s>
<s>
JMAP	B-Protocol
started	O
around	O
2014	O
as	O
an	O
internal	O
development	O
project	O
by	O
the	O
Australia-based	O
email	O
provider	O
Fastmail	O
.	O
</s>
<s>
Other	O
ongoing	O
JMAP	B-Protocol
drafts	O
at	O
IETF	O
are	O
for	O
dealing	O
with	O
calendars	O
,	O
contacts	O
,	O
quotas	O
,	O
and	O
Sieve	O
mail	O
filtering	O
.	O
</s>
<s>
As	O
of	O
version	O
3.0	O
Apache	O
Software	O
Foundation	O
’s	O
free	O
mail-server	O
Apache	B-Language
James	I-Language
has	O
“	O
experimental	O
”	O
support	O
for	O
JMAP	B-Protocol
.	O
</s>
<s>
The	O
OpenPaas	O
collaboration	O
platform	O
provides	O
a	O
webmail	B-Protocol
implementation	O
supporting	O
James	O
and	O
JMAP	B-Protocol
.	O
</s>
<s>
Cyrus	B-Protocol
IMAP	I-Protocol
supports	O
JMAP	B-Protocol
core	O
and	O
mail	O
,	O
with	O
“	O
experimental	O
”	O
support	O
for	O
calendars	O
and	O
contacts	O
,	O
as	O
of	O
version	O
3.2.0	O
released	O
in	O
May	O
2020	O
.	O
</s>
<s>
Ltt.rs	O
is	O
a	O
proof	O
of	O
concept	O
email	O
client	O
for	O
Android	O
that	O
only	O
supports	O
JMAP	B-Protocol
.	O
</s>
<s>
Stalwart	O
JMAP	B-Protocol
server	O
is	O
a	O
scalable	O
open-source	O
JMAP	B-Protocol
server	O
written	O
in	O
Rust	O
with	O
full	O
JMAP	B-Protocol
Core	O
,	O
JMAP	B-Protocol
Mail	O
,	O
JMAP	B-Protocol
over	O
WebSocket	O
at	O
IMAP4rev2	O
support	O
.	O
</s>
