I could be wrong here, but from reading the charging documents it sounds like the "denial of service" that was actually done to Jason's email account was really his account being banned when he was kicked out of the HackerDojo for using a fake name the first time. It was not until he signed up for HackerDojo a second time using another fake name, and getting banned again, that he is accused of committing his DoS on the HackerDojo.