1) taking your lawyer’s advice
is a voluntary action (although it is probably a good one)
2) I don’t understand the distinction being made between voluntary or involuntary, in the sense that a corporation is a thing made up of by people, it doesn’t have a will in-and-of-itself, so the communications it sends must always actually be made by somebody inside the corporation (whether a lawyer, marketing person, or in the unlikely event that somebody lets them out, an engineer).