This document is the process on how to create a safe senders list/ whitelist in your Gmail account. By creating one of these safe senders list it will allow you to receive emails without impediment.
How to create a filter
Step 1: Sign in to your Gmail.com account. On the upper right, click the cogwheel.
Step 2: Below the cogwheel click ‘See all Settings’ (circled in red)
Step 3: From here click ‘Filters and Blocked Addresses’. (circled in red)
Step 4: Then click ‘Create a new filter'.
Step 5: In the ‘From’ field, type the email address you’d like to make a safe sender. In the ‘To’ field, add your email address.
Step 6: Click ‘Create filter’ at the bottom
Step 7: Then select ‘Never send it to spam’.
Step 8: Finally, click the ‘Create filter’ button to save your progress.