@Cal @mazunki @schratze Depending on how deep you want to go down the rabbit hole you can read https://www.rfc-editor.org/info/rfc9413 and probably a bunch of things which have been written on the robustness principle.
@soaproot @Cal @schratze oh great, this is exactly the rabbit hole i want to go down. thanks!:)
@soaproot @Cal @schratze oh great, this is exactly the rabbit hole i want to go down. thanks!:)