messages log

To: fedora-list@xxxxxxxxxx
Subject: messages log
From: winterain_lyn <winterain@xxxxxxxxx>
Date: Sat, 29 Jan 2005 23:43:26 +0800
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Reply-to: winterain_lyn <winterain@xxxxxxxxx>, For users of Fedora Core releases <fedora-list@xxxxxxxxxx>

does any1 know the format or template of messages log of fedora?
because i need it for our prject --- parsing of log files...
thanks :)