In step 201, {HEAD ~ the tag extractor} 121 extracts {TAIL ~ all HTML tags} from an e mail in the plurality of e mails 
extracts
In step 201 , { HEAD ~ the tag extractor } 121 extracts { TAIL ~ all HTML tags } from an e mail in the plurality of e mails
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH