Spam Detection Service (Reporting)
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