<s>
Sophos	O
PureMessage	B-Application
is	O
an	O
anti-spam	O
program	O
by	O
Sophos	O
plc	O
,	O
which	O
is	O
aimed	O
primarily	O
at	O
corporate	O
environments	O
.	O
</s>
<s>
Sophos	O
PureMessage	B-Application
for	O
Microsoft	O
Exchange	O
—	O
part	O
of	O
Email	O
Security	O
and	O
Data	O
Protection	O
—	O
blocks	O
spam	O
,	O
viruses	O
,	O
spyware	O
and	O
phishing	O
.	O
</s>
