<s>
Mailpile	B-Protocol
is	O
a	O
free	B-License
and	I-License
open-source	I-License
email	B-Protocol
client	I-Protocol
with	O
the	O
main	O
focus	O
of	O
privacy	O
and	O
usability	O
.	O
</s>
<s>
It	O
is	O
a	O
webmail	B-Protocol
client	O
,	O
albeit	O
one	O
run	O
from	O
the	O
user	O
's	O
computer	O
,	O
as	O
a	O
downloaded	O
program	O
launched	O
as	O
a	O
local	O
website	O
.	O
</s>
<s>
In	O
the	O
default	O
setup	O
of	O
the	O
program	O
,	O
the	O
user	O
is	O
given	O
a	O
public	O
and	O
a	O
private	O
PGP	B-Application
key	O
,	O
for	O
the	O
purpose	O
of	O
(	O
respectively	O
)	O
receiving	O
encrypted	O
email	O
and	O
then	O
decrypting	O
it	O
.	O
</s>
<s>
Mailpile	B-Protocol
uses	O
PGP	B-Application
and	O
stores	O
all	O
locally	O
generated	O
files	O
in	O
encrypted	O
form	O
on-disk	O
.	O
</s>
<s>
The	O
program	O
preloads	O
a	O
lot	O
of	O
email	O
data	O
into	O
RAM	B-Architecture
to	O
accelerate	O
search	O
results	O
.	O
</s>
<s>
This	O
feature	O
will	O
likely	O
be	O
altered	O
in	O
the	O
planned	O
Mailpile	B-Protocol
version	O
2	O
.	O
</s>
<s>
Mailpile	B-Protocol
started	O
out	O
as	O
a	O
search	O
engine	O
in	O
2011	O
.	O
</s>
<s>
In	O
the	O
middle	O
of	O
the	O
campaign	O
,	O
PayPal	O
froze	O
a	O
large	O
portion	O
of	O
the	O
raised	O
funds	O
,	O
and	O
subsequently	O
released	O
them	O
after	O
Mailpile	B-Protocol
took	O
the	O
issue	O
to	O
the	O
public	O
on	O
blogs	O
and	O
social	O
media	O
platforms	O
including	O
Twitter	B-Application
.	O
</s>
<s>
The	O
first	O
publicly	O
tagged	O
release	O
0.1.0	O
from	O
January	O
2014	O
included	O
an	O
original	O
typeface	O
(	O
also	O
by	O
the	O
name	O
of	O
"	O
Mailpile	B-Protocol
"	O
)	O
,	O
UI	O
feedback	O
of	O
encryption	O
and	O
signatures	O
,	O
custom	O
search	O
engine	O
,	O
integrated	O
spam-filtering	O
support	O
,	O
and	O
localization	O
to	O
around	O
30	O
languages	O
.	O
</s>
<s>
Mailpile	B-Protocol
released	O
a	O
beta	O
version	O
in	O
September	O
2014	O
.	O
</s>
<s>
1024	O
bit	O
keys	O
were	O
no	O
longer	O
being	O
generated	O
,	O
in	O
favour	O
of	O
stronger	O
,	O
4096	O
bit	O
PGP	B-Application
keys	O
.	O
</s>
