<s>
Balsa	B-Application
is	O
a	O
lightweight	O
email	B-Protocol
client	I-Protocol
written	O
in	O
C	B-Language
for	O
the	O
GNOME	B-Application
desktop	I-Application
environment	I-Application
.	O
</s>
<s>
Balsa	B-Application
has	O
a	O
graphical	O
front	O
end	O
,	O
support	O
for	O
MIME	B-Protocol
attachments	I-Protocol
coming	O
and	O
going	O
,	O
directly	O
supports	O
POP3	B-Protocol
and	O
IMAP	B-Protocol
protocols	O
.	O
</s>
<s>
It	O
has	O
a	O
spell	O
checker	O
and	O
direct	O
support	O
for	O
PGP	B-Application
and	O
GPG	B-Application
for	O
encryption	O
.	O
</s>
<s>
It	O
builds	O
on	O
top	O
of	O
these	O
other	O
open	O
source	O
packages	O
:	O
GNOME	B-Application
,	O
libtool	B-Application
,	O
libESMTP	O
,	O
aspell	B-Language
,	O
and	O
gmime	O
.	O
</s>
<s>
It	O
also	O
can	O
optionally	O
use	O
libgtkhtml	O
for	O
HTML	O
rendering	O
,	O
libkrb5	O
for	O
GSS-API	O
,	O
and	O
openldap	B-Language
for	O
LDAP	B-Protocol
functionality	O
.	O
</s>
<s>
It	O
can	O
optionally	O
be	O
configured	O
to	O
use	O
gpg-error	O
and	O
gpgme	O
libraries	O
.	O
</s>
<s>
Balsa	B-Application
is	O
packaged	O
for	O
a	O
wide	O
range	O
of	O
Linux	B-Application
distributions	I-Application
,	O
including	O
Arch	O
Linux	B-Application
,	O
Debian	O
,	O
Fedora	O
,	O
openSUSE	O
,	O
Slackware	O
and	O
Ubuntu	O
,	O
as	O
well	O
as	O
for	O
FreeBSD	O
.	O
</s>
