gwardpythonnet greg ward 06 september 2002 tim peters said note header names case insensitive ones different mimeversion similarly headers list ignoring case may may help thats experiment decide plausible case significant eg particular spam mailing package generates unusual case particular clueless spammer misconfigures package case headers definitely helpful spamassassin rule headers like date subject get points greg greg ward httpwwwgergca god omnipotent omniscient omnibenevolent says right label fri 6 sep 2002 140223 0400 spambayes test sets