As microsoft ofers DKIM-singing for outgoing mails at no extra cost, i will validate this information as 3rd authentication token. Looks much clearer and several addons for postfix exist to do so.
Am Mo., 17. Juni 2019 um 21:31 Uhr schrieb Wietse Venema < wie...@porcupine.org>: > > The latter is simply conservative design. There is no need to forward > this information, and a receiving system might object to receiving > XOORG from a Postfix machine that isn't authorized to send it. > > Wietse >
