Yahoo! Mail values our users' feedback. One of the ways we get to hear from you directly is through your use of the Spam and Not Spam buttons within the Yahoo! Mail experience. Every time you report an email as Spam or Not Spam, you provide us with valuable information in order to customize your mail account's personal filters. Using these buttons also provides useful data about the email and its sender to our adaptive system-wide filters.

For example, if an email you expected from your favorite online store lands in the Spam folder and you click the Not Spam button for it, that one click will move the email to your inbox and train your personal filter as well (so that future emails from the same sender are delivered to your inbox). Additionally, data about the email is also fed to our anti-spam systems for analysis.

A similar process happens when you click on the Spam button for an unwanted email in your inbox: We'll prevent subsequent emails sent by the same sender from getting emails into your inbox and use your feedback to improve the various filters of our spam defenses. In certain instances, we'll even try to unsubscribe you from a sender's mailing list when it is safe to do so*.

By using these buttons, you as a Yahoo! Mail user can help us deliver only relevant emails to the inbox. It not only improves your own email experience, your feedback also assists in ensuring a great experience for all Yahoo! Mail users.

* We work with LashBack to identify certain senders that honor unsubscribe requests. When a user reports "Spam" on an email from a sender that has a good unsubscribe reputation, LashBack facilitates an unsubscribe request so the user is removed from the sender's mailing list.