PayPal scam email

Hi, this is my first time at posting on the forum.

I haverecently received the paypal email which contained the worm Mimail.1

Norton picked this up and it was quarantined. Once it is in quarantine is it possible to delete it or do I just leave it where it is? I have since had the same email 4 times.  I blocked it on Outlook express yesterday, but the email came through again today, making a total of 6 receipts of this email. Is this usual? I was asked if I wanted to quarantine again, which I did, and the email was deleted automatically.  I thought if an email was blocked it would not get through at all?

I have never used paypal, and paypal has informed me it is an unauthorised url.

Any comments on this would be appreciated.