We would like to inform you that the emails you are receiving could be spam which does not refer to you.I do want to receive these emails - really! If I set up a spam filter to get rid of them though, it will certainly solve the problem (from their POV).
People who send spam (known as spammers) can harvest email addresses from a variety of sources including via Usenet postings, feedback forms, web sites, Chat forums, 'friends' distributing your address (either knowingly or not) etc. Increasingly however, spammers use sophisticated software which generates any possible email address combination.
There is a possibility that the email may be spam email which you can deal with by setting up spam filters...
I'm not going to respond to this latest email in case they suggest formatting the hard drive.