According the the article, it appears that he tweeted by using the (legal to access) system for sending e-mails, and someone else tweets them for him. Unless he

According the the article, it appears that he tweeted by using the (legal to access) system for sending e-mails, and someone else tweets them for him. Unless he has a restriction on using computers / the internet as part of his sentence, I have a hard time imagining how that is illegal.