<s>
Airmail	B-Protocol
is	O
an	O
email	B-Protocol
client	I-Protocol
for	O
iPhone	B-Device
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
by	O
Italian	O
company	O
Bloop	O
SRL	O
.	O
</s>
<s>
It	O
was	O
based	O
originally	O
on	O
the	O
Sparrow	B-Application
client	I-Application
.	O
</s>
<s>
Macworld	O
reviewed	O
the	O
application	O
in	O
2013	O
and	O
concluded	O
that	O
"	O
Airmail	B-Protocol
is	O
a	O
great-looking	O
email	B-Protocol
client	I-Protocol
,	O
and	O
does	O
a	O
few	O
things	O
quite	O
well	O
,	O
but	O
it	O
has	O
a	O
few	O
annoying	O
quirks	O
"	O
.	O
</s>
<s>
In	O
2017	O
,	O
Airmail	B-Protocol
3	O
was	O
a	O
winner	O
in	O
the	O
annual	O
Apple	O
Design	O
Awards	O
.	O
</s>
