Deleting items from Outlook Calendar

[MasterPhil]

I have one uses where Exchange2k says the mailbox is 277mb in size and yet they have only 5 emails with no attachments, nothing in send or deleted items, only a few contacts and 5 calendar items which are on endless recurrency. (170 items in total apparently)

Is this corruption or is there something else going on in Outlokk 2002 that I don't know about. Other users with similar numbers of items have mailboxes that are only 20 or 30 mb in size.

Help?

 

[MasterPhil]

Addendum:

As I couldn't get the users mailbox down in size, I manually increased her mailbox limits. However, this is being ignored and Exchange is refusing to allow here to send messages (but it will now deliver email). Mailbox space used 288,000. Mailbox limits on send and receives 500,000.