generating a mail thread including {TAIL ~ at least two e mail messages} transmitted and received between {HEAD ~ a message originator} and at least one recipient 
generating a mail thread including { TAIL ~ at least two e mail messages } transmitted and received between { HEAD ~ a message originator } and at least one recipient
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH