I have been getting two or three spoofs a day for the last 3 weeks or so with the same content. You can usually link the start of the emails with a website where you used the email address ie. 3 weeks ago I bunged some stuff up on my gumtree account and the next morning the spoofs started flowing in.

I just bumped the gumtree ads so I am expecting another flurry.

Enthusiasts sites (car and collector enthusiast sites for me) are also a good email harvest ground for the scammers.