Interesting discussion...
I received 40 emails -- all received within 30 seconds of each other -- on my Blackberry sitting on my nightstand at 3 in the morning one night. The emails were from a few of my site's pages (ask a question, add a picture, mailing list submission, etc) and they all use a common email id.
The interesting thing I noticed was the emails did not come from
common@getmea-skateboard.com. Instead, it came from my physical server address ie:
hostxxx.aaaaa@getmea-skateboard.com.
The surprising thing is I am not mad this happened. On the contrary, I'd like to know HOW this was done.
I reported this event to my host, but they cannot do anything.
Given the above, how can I institute a "captcha" or a mini math quiz on my pages if spammers appear to be circumventing normal page rendering?