Once mailbox quotas are enforced in Exchange 2007, the information about your mailbox size will show up in OWA. Is there a way to have that same information show up in the full Outlook 2007 client?

HiI dont think so that option is available in Otlook 2007 client. But if you want to see the size of Inbox and other subfolders you can check in tools menu --> mailbox cleanup-->view mailbox size

Yes, agree with akther. There is no option to enable the feature on outlook client.But if user use outlook and his mailbox size is meet the quota, he will receive the warning mail from the exchange server.Frank Wang