Thanks for this guide, very useful.
I'm a bit worried about spamcop as I accessed the e-mail on Blueyonder webmail and got the header and pasted it in as well as the body text but the next page it says 'report spam to' and keeps saying uk2.net which isn't the source of the spam, it's where my mail is redirected from...
The header says the originator of the message is
77.42.202.122. Whois doesn't give any contact details for them?