In step 202, {HEAD ~ the fingerprint generator} 122 links together {TAIL ~ the extracted HTML tags} to form a fingerprint of the e mail 
links together
In step 202 , { HEAD ~ the fingerprint generator } 122 links together { TAIL ~ the extracted HTML tags } to form a fingerprint of the e mail
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH