This guide will show you how to view previously permitted senders, and how to permit new senders.
Once you have logged in, look for the Permitted section and click into it.
You will then be able to see a list of senders that are Permitted. As you can see, the below sender is just an example.
You then have the option to Block or Remove the permitted senders in your list. if you would like to add a new sender, click add Permitted.
Enter the email address, and click add
Now click Permit