Junk e-mail can seem like a never ending battle. It keeps piling up. Windows Mail provides the Junk E-mail Options dialog box to help you reduce the amount of junk e-mail you receive. You can set a junk e-mail protection level that makes sense to you, from no filtering to only the safe senders list. If you receive junk e-mail from international domains or languages, you can quickly and easily block them. E-mail has become the new way to commit fraud using spoof sites and addresses. These types of e-mail are called phishing. You can set options in Windows Mail that can help protect you again potential phishing attacks.
Important:
You should only select this option if you selected the Low option above to avoid deleting regular e-mail.