This is good. Several of the messages from Microsoft that I've received in my Office 365 mailbox are spam.

A good chunk of emails I get from YouTube go to spam. I have notifications on by email for when some youtubers post new videos: https://i.imgur.com/8E0oGrP.png

However some of them do not get spam filtered, only a chunk of them do. It's weird because these come from YouTube, so it's a similar problem where Gmail is filtering Google emails....

And allow the occasional obvious phish to deliver to the inbox.

In my experience the amount of Microsoft-themed phishing attempts that make it through Outlook (O365) is unbelievable.