> That would be an interesting research project.
Indeed. When you say get spam, do you mean pre or post-filtering?
Over the last 30 days (I don't keep them longer than that) I've received 43 spam emails which were sent to the spam folder (so I wouldn't ever see these, other than because I went and looked now for the sake of this discussion). In the same time period there was only 1 spam email which was missed by spamprobe and made it into my inbox spool.
There's a fair amount of would-be spam that gets blocked during the SMTP transaction due to things like bogus host in HELO, etc. I don't keep any stats on those, I did at one time but it was too much noise.
My email isn't secret, it should be on every spammer list I'd guess. It has been the same since the mid 90s and is all over usenet, email list archives, websites, etc and I've never made any effort to mask it.