NOTE: These steps do NOT work in the Outlook Desktop Application. You must do them from Outlook Web Access - https://outlook.office.com
If email is going to your Outlook.com Junk folder by mistake, you can mark it as Not junk or add the sender to your Safe Senders list. To mark an email message as "Not Junk" in Outlook Web Access
Open your Junk Email folder and select the messages you want to keep.
From the top toolbar, select Not junk > Not junk (or Not spam > Not spam). You can also open the message and select the It's not junk link at the top.
If you've blocked someone by mistake, open your Blocked senders list and select the
next to their name.Add the sender to your Safe senders list.