Access mail archives by date, thread, author and subject

period	re-sorted			messages
October to December 2008	by thread	by author	by subject	21
July to September 2008	by thread	by author	by subject	47
April to June 2008	by thread	by author	by subject	98
January to March 2008	by thread	by author	by subject	72
October to December 2007	by thread	by author	by subject	1