Clients getting spammed

Hello,
There is this guy named Alexander Bavin, DirAdlex@gmail.com, 478-480-2793, that is spamming my clients for his new seo ebook for OpenCart. It appears he is an affiliate of http://www.opencart-seo.com/

He starts off with...

I see that your online shop is running on OpenCart platform and because of that I would like to present you the latest Opencart seo ebook guide that has recently launched....

I have already had over 9 of my OC clients complain about this. I looked over the extensions to see if he is in there, but I didn't find this spammer.

The BIG question is, how does he know all the people who are using OC?

My clients don't come here so it's not a question if OC gave up the info. Is there a scanner out there now that finds all OC installs? If so, how do we block it? We have already filed multiple complaints with gmail and he hosts with some free site out of Holland to hide behind.

Just thought I should let you guys know of this practice and to watch out for those unsolicited emails regarding our carts!

Next this guy will be trying to steal your info if you buy from him I suppose! Who knows about these shyster scamming spammers!

this guy is using a spider wich is looking for websites using opencart signature.
then he visits the site and put his advertisement in through contact form, perhaps hoping he sels his probally unneeded book.

had the same spam on all my websites (using my own tracking software, logging each individual visit) so i could find this back.

Thanks Victor! Already added his IP range to the firewall. Yea there's no way I'd buy a book from this guy when I prob have forgotten more than he knows! lol

I had the same spam, I just deleted it.

I have the spam too. Just delete it and ignore it