archiving related e mail messages within {TAIL ~ the mail thread} in {HEAD ~ an e mail client application}, comprising: 
archiving related e mail messages within { TAIL ~ the mail thread } in { HEAD ~ an e mail client application } , comprising :
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH