Sometimes emails we need will end up in our Spam folder. It's always a good practice to look over your SPAM folder from time to time to make sure you are not missing anything.
Step 1: Open your Gmail and select "SPAM"
Step 2: Find the email that is not SPAM.
Step 3: Open the email and click on "Not Spam" or "Report not Spam" Buttons.
Step 4: Click on the three dots near the top middle of the email screen. Then, select "Filter Messages like these." This will bring up a popup menu.
Step 5: Click "Create Filter" in the pop up menu.
Step 6: Select "Never send it to spam" and then "Create Filter."