Unfortunately there really isn’t anyone to report it to. Here’s the relevant info from the secret service:
Due to a number of aggravating circumstances, such as the use of false names, addresses, stolen/cloned/prepaid cell phones and remote email addresses, verifying the location of and subsequent prosecution of these persons or groups is difficult. The act of sending an email soliciting strangers’ assistance in a financial transaction is not, in itself, a crime. The installation of a credible spam filter and contacting your Internet Service Provider may help deter these unsolicited emails. However, there is currently no available program to completely block these types of messages.
