-# Emails are:
-# multipart/mixed, containing
-# text/plain; name="metadata"; charset="utf-8"
-# Content-Disposition: inline; filename="metadata"
-# ocean\t<ocean> canonical mixed case
-# island\t<island> canonical mixed case
-# timestamp\t<digits> time_t (non-leap secs since start of 1970 UTC)
-# clientname\t<cname> may contain spaces
-# clientversion\t<cversion> may contain spaces
-# clientfixes\t<cfixes> space-delimited list
-# clientspec\t<cspec> <cname>\t<cversion>\t<cfixes>
-# servername\t<sname> may contain spaces
-# serverversion\t<sversion> may contain spaces
-# serverfixes\t<sfixes> space-delimited list
-# serverspec\t<sspec> <sname>\t<serverversion>\t<serverfixes>
-# application/octet-stream; name="deduped.tsv.gz"
-# Content-Disposition: attachment; filename="deduped.tsv.gz"
-# <base64>
-