My site was taken offline last month cos I was getting 2 thousand spams per day (...well, between 1,800 and 1,900 to be a bit more precise).
I have heard reports that there are so-called "robots" that constantly scour the Net just looking for email addresses to spam.
This spam scene has been seriously ruining my life recently and after several weeks of pain and research my advice to you Nigel, is to go through the entire site and basically make sure that your email address is hidden from view. If people want to contact you, I would recommend that you have a contact us form put on the site- that way people will be able to get in touch without necessarily seeing your email address.
Now, I haven't even looked but I'm sure that the email address for synthzone is probably info@synthzone.com or nigel@synthzone.com or something like that. But the fact that any Tom Dick or Harry can make an educated guess about what your email address is not the point. The goal here should be to try and eliminate any possibility of those pesky robots sniffing out your address.
From what I hear, these things are programmed to search for strings which contain any characters that are consistant with email addresses (such as "@" and ".com"). I've already noticed one or two pretty big sites have started implimenting this tactic of hiding their email address or even writting it in a broken form eg, "info @ synthzone.com" (note the spaces).
Anyway, sorry for blabbering on but you've got my sympathies on this one and it's an issue that's close to my heart these days.
I wish the governments of the civilized world would do something about this terrible problem. I think it's seriously ruining the Internet.
*QUICK FACT- Over 50% of all spam emails are sent from Florida.*
_________________________
David