On Thu, Apr 02, 2020 at 03:06:17PM +0800, Tessa Plum <tessa at plum.ovh> wrote a message of 18 lines which said: > I never knew BCP38 before. I will try to study it. BCP38 is Good, *but* it protects others against you. So, to be protected, you need the *others* to implement it.