In one embodiment, the tag extractor 121 extracts {HEAD ~ all HTML tags} from the e mail without including texts and {TAIL ~ tag attributes} 
In one embodiment , the tag extractor 121 extracts { HEAD ~ all HTML tags } from the e mail without including texts and { TAIL ~ tag attributes }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL