But the constant view-message-source copy open-SpamCop-page paste submit cycle can get time consuming and tedious if you get lots of spam. That's why I prefer to submit my spam via email.
To submit spam to SpamCop via email, you first need to find out your personal submission email address. Every registered user has one, and it is displayed on the SpamCop home page, right below the welcome message.
Now forward unrequested, unwanted emails to this address to have it parsed by SpamCop.
It is important that you forward the message as an attachment and not inline. One of the big advantages of submitting spam via email is that you can insert multiple messages at once: just forward them in one email.
Once SpamCop has processed the spam, it will send a mail back to you containing the URL you can use to report the spammer.