I use Microsoft office outlook2007 for my email.

Why did I get all of my email messages duplicated today.
Why are all of my deleted messages not being delited from Outlook.com?

Do iI need to manually delete these suppoesed to be deleted messagfes from Outlook.com?

What is the POP box? Is it different from the Inbox?

How do I delete the duplicate files in my Microsoft Office Outlook with out having to manually highlight each duplicate message and deleting it.

Please help.
Thanks