For Gmail Users:
Step 1: Once you log-in to your Gmail account, click on the setting icon in the top right corner and click on ‘See all settings.’
Step 2: Click on ‘Filters and blocked addresses’ and ‘Create a new filter’ at the bottom of the page.
Step 3: Add the following email addresses and click on ‘Search.’
Step 4: Finally, check the box ‘Never send it to Spam’ and ‘Create filter.’
Step 5: To confirm, check if are able to see the below screen.
Note: Same process applies for all the other email service providers.