Outlook Performance and Mailbox Size or Item Count

Mailbox size or item count can have a serious effect on the performance you see in Outlook. The following article gives some good insight into why, and what can be done about it.

http://blogs.technet.com/b/exchange/archive/2005/03/14/395229.aspx

References:
http://blogs.technet.com/b/exchange/archive/2005/03/14/395229.aspx

Get Exchange Mailbox Stats

Get-MailboxStatistics

Get-MailboxStatistics | ft DisplayName,TotalItemSize,ItemCount

Get-MailboxStatistics | Sort-Object TotalItemSize –Descending | ft DisplayName,TotalItemSize,ItemCount

References:
http://www.msexchange.org/articles-tutorials/exchange-server-2007/management-administration/getting-mailbox-statistics-exchange-2007.html