2. click on Mail.
3. After that, click on your email address in the list.
4. Then, click on the Spam Filter tab.
5. click on Show Advanced Settings.
6. Here you can add an email address that you want to whitelist in the whitelist field and an email address that you want to blacklist in the blacklist field.
7. Finally, click on the OK icon.
In this way you can blacklist or whitelist an email address.