An anonymous reader writes Every day my gmail account receives 30-50 spam emails. Some of it is UCE, partially due to a couple dingbats with similar names who apparently think my gmail account belongs to them. The remainder looks to be spambot or Nigerian 419 email. I also run my own MX for my own domain, where I also receive a lot of spam. But with a combination of a couple DNSBL in my sendmail config, SpamAssassin, and procmail, almost none of it gets through to my inbox. In both cases there are rare false positives where a legit email ends up in my spam folder, or in the case of my MX, a spam email gets through to my Inbox, but these are rare occurrences. I'd think with all the Oompa Loompas at the Chocolate Factory that they could do a better job rejecting the obvious spam emails. If they did it would make checking for the occasional false positives in my spam folder a teeny bit easier. For anyone who's responsible for shunting Web-scale spam toward the fate it deserves, what factors go into the decision tree that might lead to so much spam getting through?