(cat /var/log/mail.log;zcat /var/log/mail.log.[1-5].gz)|grep qmgr|grep mtgox
Aug 18 07:13:04 skew postfix/qmgr[23431]: 0893C7F4F: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Aug  9 14:27:31 skew postfix/qmgr[23431]: AA4957F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Aug  1 20:03:32 skew postfix/qmgr[23431]: 570757F57: from=<info@mtgox.com>, size=1953, nrcpt=1 (queue active)
Aug  3 17:43:21 skew postfix/qmgr[23431]: D40F77F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Aug  5 00:12:55 skew postfix/qmgr[23431]: 9879B7F4F: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Jul 24 06:41:32 skew postfix/qmgr[23431]: C96007F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Jul 26 07:08:20 skew postfix/qmgr[23431]: 506BB7F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Jul 19 02:33:34 skew postfix/qmgr[23431]: DFBFE7F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Jul 20 03:18:31 skew postfix/qmgr[23431]: A37D07F4F: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)
Jul 22 08:40:05 skew postfix/qmgr[23431]: 8E0FE7F57: from=<info@mtgox.com>, size=1151, nrcpt=1 (queue active)