Abstract: Methods and systems for blocking, from a user's email account, emails sent by an unknown sender. In one embodiment, a method may include determining if a sender of a received email message is a trusted sender; if the sender of the received email message is not a trusted sender, administering one or more tests to the sender; and if the sender passes the one or more tests, accepting the received email message into the user's email account. The method may also include if the e-mail is from an unknown sender who fails the one or more tests, providing for deleting or blocking the email without placing the email in the user's email account.