<s>
Mail-in-a-Box	B-Language
is	O
a	O
free	B-License
and	I-License
open-source	I-License
program	O
for	O
mail	B-Protocol
server	I-Protocol
hosting	O
developed	O
by	O
Joshua	O
Tauberer	O
.	O
</s>
<s>
The	O
software	O
's	O
goal	O
is	O
to	O
enable	O
any	O
user	O
to	O
turn	O
a	O
cloud	O
system	O
into	O
a	O
mail	B-Protocol
server	I-Protocol
in	O
few	O
hours	O
.	O
</s>
<s>
It	O
can	O
also	O
set	O
up	O
and	O
automatically	O
renew	O
a	O
Let	B-Application
's	I-Application
Encrypt	I-Application
certificate	B-Architecture
,	O
as	O
well	O
as	O
configuring	O
the	O
detailed	O
DNS	B-Protocol
configurations	O
needed	O
to	O
ensure	O
that	O
a	O
mail	B-Protocol
server	I-Protocol
's	O
IP	B-Protocol
address	I-Protocol
is	O
trusted	O
by	O
other	O
servers	O
,	O
and	O
less	O
likely	O
to	O
be	O
blacklisted	O
.	O
</s>
<s>
Its	O
support	O
for	O
IMAP/SMTP	O
facilitates	O
synchronizing	O
across	O
devices	O
.	O
</s>
<s>
First	O
developed	O
in	O
2013	O
by	O
Tauberer	O
,	O
the	O
tool	O
is	O
written	O
in	O
Python	B-Language
.	O
</s>
