False positive? Triggers on the following traffic:
<tr bgcolor='#ffffff' background='/image.jpg'><td align=left colspan=1 height=1><a href='javascript:ViewDetail(1105,0)'><font face='Arial' size=2>System, Joe</font></a></td><td align=left colspan=1 height=1><font face='Arial' size=2>+41-10-12161161</font></td><td align=left colspan=2 height=1><a href='mailto:joe.system@mail.co.uk'><font face='Arial' size=2>joe.system@mail.co.uk</font></a></td>