I started using Microsoft Office Outlook yesterday. I have setup the pop3 e-mail account and I was able to view and maintain my inbox with Outlook.
I logged in my calpolyonline email by webmail and all my emails in the inbox are gone. Did not know that using Outlook actually grabs all the email from the inbox.
I removed the email account from Outlook and the email in my calpolyonline webmail is still zero.
How do I retrieve all the emails back into the webmail? 
Thanks in advance.