E-mail absolutely is user-generated content. Section 230 doesn't say anything about "posted publically". Now, there's not quite as much need for it to protect

E-mail absolutely is user-generated content. Section 230 doesn't say anything about "posted publically". Now, there's not quite as much need for it to protect non-public content, because getting people to sue over that is a bit harder, but it really is rightfully protected too.