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