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[tcpdump-workers] Returned mail: see transcript for details

The original message was received at Fri, 22 Dec 2017 10:08:40 +0800 from alum.mit.edu [198.3.56.83] - The following addresses had permanent fatal errors - - Transcript of session follows - while talking to lists.tcpdump.org.: >>> MAIL From:g...@alum.mit.edu <<< 501 g...@alum.m