Access mail archives by date, thread, author and subject

period	re-sorted			messages
June 2018	by thread	by author	by subject	7
May 2018	by thread	by author	by subject	3
April 2018	by thread	by author	by subject	3
March 2018	by thread	by author	by subject	11
February 2018	by thread	by author	by subject	10
January 2018	by thread	by author	by subject	6
December 2017	by thread	by author	by subject	1
November 2017	by thread	by author	by subject	3
October 2017	by thread	by author	by subject	5