RFC2822のReceived:

History

Time	Change
2008-11-24 13:43:31+00:00	Created
2008-11-24 13:43:31+00:00	Associated with 759
2017-06-03 10:35:51+00:00	Disassociated from 759
2017-06-03 10:35:55+00:00	Associated with 4107