Where to report scam E-mails ?

Hi
I am in the UK and I wondering where can I forward scam E-mails particular the money Mule ones.
I found ''Action fraud'' which is rather confusing and don’t let you forward an E-mail. And the National crime agency, where you have to open an account which looks quit complicated and also you can't forward an E-mail.
Is there anything else which let you forward an E-mail?

Thanks

Post them here. We have several categories. Put the email in the appropriate category, with full headers, omitting your name and address. It will be indexed by search engines, and other recipients who search the name or wordings will know that it's a scam.

Thank you