Earlier quoted context omitted.
The protocols don’t talk about copyright explicitly, but they talk about replying and forwarding. Both of those behaviors are only legal if there is an implicit grant of copyright to the recipient.
That line of logic doesn't work. A protocol is neither legal not illegal. It would be like saying that Swedish is illegal. The law largely doesn't care how you do something. It's also not a necessary condition because an internal company mail server wouldn't run into copyright issues since the company owns the copyright on all their employees' work. "Uploading a copyrighted work that I downloaded via GET with POST mu…
My point is that when you send someone something you've written as an email, it constitutes an informal agreement (essentially a private contract) with the recipient.
> It's also not a necessary condition because an internal company mail server wouldn't run into copyright issues since the company owns the copyright on all their employees' work.
That's true, but anyone with a company email address is legally considered a representative of the company. (That's why you always need to deactivate people's email addresses when they leave.) So while the company (almost) always owns the copyright over work created, the employee is able to dual license that content by sending it via email.
Anyway just to be clear we're not saying you should go ahead and dox all your friends. We're not ad supported, that doesn't benefit us at all. (If your first experience with the site is getting doxxed, you're probably not going to sign up, and almost certainly aren't going to start paying for the business product.)