Whitelisting an email address simply adds it to an "approved sender" list in Yahoo so that emails don't get stuck in spam or junk folders.
Yahoo does not guarantee messages from desired senders won't be sent to spam, but the steps below will help.
Add a Contact to Yahoo Account:
- From Yahoo Mail, select the Contacts icon
- Select Add a new contact
- Enter the sender’s information, including the sender's email address
- Select Save
Unmark Email as Spam:
From a Mobile Browser
- Go to Yahoo Mail in your mobile device’s web browser
- Tap the Sidebar menu icon
- Tap the Spam folder
- Select the desired email from the sender
- Tap the Move icon
- Tap Inbox
From a Computer
- Go to Yahoo Mail on your computer’s web browser
- Select the Spam folder
If you don’t see the “Spam” folder, select More below the “Sent” folder - Open the desired email from the sender
- Select Not Spam at the top of the page and the email will return to your Inbox