Hi,
I am seeing a wave of MS Azure Cloud Spam these days. Many of these mails come with a header: * Return-Path: <MAILER-DAEMON> * Empty From Field They than pass the greylisting filter (and all others it seems) with "Bounce message. Skip." Is there a way to influence this behaviour? Postfix on debian stretch / no Spamassassin. Greets, Ludi
