Tracking the past is not possible
==
For the future
Create a Transport Rule - Use GUI , It should be much easier.
It should have a option to send a copy of bcc messages
http://technet.microsoft.com/en-us/library/bb125138.aspxSatheshwaran Manoharan | Exchange 2003/2007/2010 | Blog:
http://www.careexchange.in | Please mark it as an answer if it really helps you
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