To ensure they are put in your Inbox, click on your Junk Email folder. Then right-click the message labeled as Junk and select Junk >> Not Junk from the context menu.

Junk

The Mark as Not Junk box comes up. Check Always Trust email From user@emai.com and check your email address below that. Click OK. The message will be moved to your Inbox and won’t be blocked as Junk again.


https://www.groovypost.com/tips/mark-outlook-not-junk/