Here are some instructions to help manage Junk Mail in Outlook on the Web
Here is additional information if needed: Block or allow (junk email settings) - Microsoft Support
Link to Microsoft's help article
Manage your junk email
Add Mail to Safe Sender List
-
Select Junk Mail from the Outlook Web Application.
-
Right click on the message that is not supposed to be in your Junk Mail folder.
-
Select Report and then "Not junk"
Report SPAM/Junk Mail
- From your inbox, right click on message that is SPAM/Junk.
- Select Report and then "Report Junk"
Change Junk Mail Settings
- At the top of the Outlook Web page, select Settings

- Select Mail on the left hand side.
- Click Junk email and adjust security options, incoming mail handling and specific senders to your liking.
Need Outlook Client on the Desktop, click here for that article.