Whatever M$ was doing still baffles me. I still have several azure ranges in my blocklist because whatever this was appeared to change strategie once I implemented a ban method.
They were hammering our closed ticketing system for some reason. I blocked an entire C block and an individual IP. If needed I will not hesitate banning all their ranges, which means we won't get any mail from Azure, M$ office 365, since this is also our mail server. But scew'em, I'll do it anyway until someone notices, since it's clearly abuse.
