Both Email Phishing and Social Engineering and Email Scams contains a lot of information on phishing/scams messages. 

You can also report un-wanted messages to Microsoft to improve the spam detection of their Exchange Online Protection:

• How to avoid mails delivered to Junk E-Mail folder?
• How to report unwanted messages (junk email / spam):
  • Select the Report Message button located at the upper right corner (Outlook)
  • Choose Junk or Phishing whenever it is applicable