MS is publishing source ips/ranges. sasl_exeptions_networks seems an option but i still dont like the lack of authentication.
Am Sonntag, 16. Juni 2019 schrieb Wietse Venema <wie...@porcupine.org>: > Stefan Bauer: >> its like the first: >> >> end-user client -> microsoft server -> postfix server -> remote recipient > > How would Postfix know that the server is Microsoft Office 365? > From the reverse DNS? > > Wietse >
