No straightforward way to get the average sizes. You'll have to run
the Exchange profile analyzer or if you have something like
Messagestats.
"B.E. Jorgenson" <jorge...@gmail.com> wrote in message
news:014bdcc4-686e-4417...@i41g2000vbn.googlegroups.com...
> Is there a straightforward way to get average messages per user
> mailbox and average message size across an entire Exchange 2007 org?
This one is for Exchange 2010, I'm not sure if it works on Exchange 2007.
http://www.mikepfeiffer.net/2010/03/exchange-2010-database-statistics-with-powershell/
Dubravko