Mailboxes created for conference rooms (on Exchange 2007 Recipient Type : Room Mailbox) by default has disabled auto accept for calendar appointments. That causes issue when people trying to book room as all appointments show as tentative and manual interaction/accept is required. In order to streamline process and make it more handy for people (in case nobody is assigned to control room bookings) you can enable auto accept feature, so all appointments will be accepted automatically. To do that use PowerShell:
In some companies performance is measured based on number of emails someone sent. regardless the reason for those emails and content, what matters the most is if someone is sending something to others. So, I was asked to produce quick count how many emails one individual sent.
Here is quick PowerShell command which I ran on Exchange 2007 Mailbox server to find requested number: