That is a good point indeed, with all the effort that goes into keeping your cloud server IP out of some blacklist to this day I still get extremely clear phish

That is a good point indeed, with all the effort that goes into keeping your cloud server IP out of some blacklist to this day I still get extremely clear phishing mail and spam directly in my inbox on outlook.com and the majority of the time it sits there indefinitely until I manually trash it, other times the spam filter will work it out (but after several hours).