Adding to Safe Senders List in Outlook 2016

Having a Safe Senders List will prevent these contacts from being moved to the Junk email folder. This does not affect Junk Filtering on the Server-level, and does not affect any rules you may have set up on your account to move emails.

1. In Outlook 2016 on desktop, go to the "Home" screen and click on Junk > Junk E-mail Options...

2. A Junk E-mail Options window will appear. Click on Safe Senders to swtich tabs.  
3. Click the Add button.
4. A window will appear, type the address you want to add to your Safe Senders list and click OK.

Everyone you specified should now be exempt from Outlook's built-in Junk Filter.