ericdano writes: "I have been tasked with figuring out who is behind a rather questionable email sent to a co-worker. This email is not law enforcement material, yet, but the contents make accusations that, if false (and the person says they are false), could damage them and people around them. Using the email headers, I have traced the account to a Rocketmail.com email account (which is Yahoo owned), and it originated from an IP address that come off the Earthlink network in Hayward. Now what? Do I contact Yahoo? Should I try services like EmailFinder.com, EmailSearch.com, or ReverseEmailDetective.com? Any other ideas?"