We request that email users take advantage of the spam and phishing reporting tools we have available within Outlook both on your desktop and online:
Reporting Spam/Phishing:
Junk Blocking Management:
Outlook Desktop Client: Overview of the Junk Email Filter Outlook Web Version: Help keep spam and junk email out of your inbox in Outlook.com
Taking the time to report these messages is appreciated and will help the automated spam filter prevent these messages from appearing in your Inbox in the future.
Microsoft provides further helpful information on identifying phishing emails here: Protect yourself from phishing
Also, please refer to this infographic on how to identify questionable emails: