Tables obscuring words

[Todd Ellison]

Hi all.
I have seen several spammers lately using tables to obscure offensive 
words in the message body.  Most of them get caught by other tests, but 
some get through.  Do you guys have any ideas for rules to check this? 
(Example table source below)

Thanks
Todd
---------------Begin example----------------
<TABLE cellSpacing=0 cellPadding=0 border=0>
 <TBODY>
 <TR vAlign=bottom>
   <TD rowSpan=2><font face="Arial" style="font-size:
13pt">Exp</font></TD>
   <TD>&nbsp;</TD>
   <TD rowSpan=2><FONT face=Arial style="font-size:
13pt">&nbsp;and&nbsp;En</FONT></TD>
   <TD>&nbsp;</TD>
   <TD rowSpan=2><FONT face=Arial style="font-size: 13pt">&nbsp;your
Pen</FONT></TD>
   <TD>&nbsp;</TD>
   <TD rowSpan=2><FONT face=Arial style="font-size:
13pt">&nbsp;with&nbsp;&nbsp; </FONT></TD>
   <TD>&nbsp;</TD>
   <TD rowSpan=2><font face="Arial" style="font-size: 13pt">largement
p</font></TD>
   <TD rowSpan=2><FONT face=Arial style="font-size:
13pt">ill&nbsp;</FONT></TD>
   <TD>&nbsp;</TD>
 <TR>
   <TD><font face="Arial" style="font-size: 13pt">and</font></TD>
   <TD><font face="Arial" style="font-size: 13pt">large</font></TD>
   <TD><font face="Arial" style="font-size: 13pt">is</font></TD>
   <TD><font face="Arial" style="font-size: 13pt">our en</font></TD>
   <TD>&nbsp;</TD></TR></TBODY></TABLE>