Considering that my e-mail address is contained in my profile on various other sites that are anything but G-rated and will only accept a properly formatted address, I'm surprised that I only receive the occasional spam message, and they are almost always appropriately identified and delivered into my spam folder.
These are generally "from" a female and have a one word subject like "Funny" or some such thing. Or the "from" is gibberish and the subject is about E.D. pills from Canada.
The ones that really annoy me are from Facebook, which has taken the liberty of mining my e-mail address from various members' contact lists and then falsely advises me that so-and-so has invited me to join, or is still waiting for me to join. Yeah, right. I'm not on Facebook and will never get sucked into that sort of invasion of my privacy.