MojoKid writes "A recent study (PDF) by Richard Clayton at Cambridge University determined that the first letter of a someone's email address directly affects how much spam they receive. As shown in the graph at either link above, email addresses with numbers as their first characters receive even fewer spam emails. The corpus used in the study was 8 weeks' worth of email from the UK ISP Demon Internet, just over half a billion messages, of which 56% was deemed to be spam."Read more of this story at Slashdot.