You can set up Blocked Sender List in your Microsoft 365 (M365) account so that email sent from those email addresses listed in the Blocked Sender List are always filtered to your Junk Email folder.
Following is the setup procedure in Microsoft Outlook 2013:
A. Add Single Sender Address directly from a Selected Email:
B. Add Multiple Addresses or Domains:
Return to FAQs on CityU Microsoft 365
IT.ServiceDesk@cityu.edu.hk