You can report spam by not opening a spam message. Just click inside the check-box next to it, then click Spam to let us know it’s a spam message. We pay a lot of attention to spam you report to us. It gives us tools to disrupt the latest tricks and techniques that spammer individuals and spammer companies are using to try to evade our filters.

Reports of spam originating from a Yahoo! Mail account (i.e.,user@yahoo.com) receive our special attention. Since spamming is expressly prohibited in Yahoo!’s Terms of Use, any account caught spamming will be cancelled.

If you change your mind or think you made a mistake, just look for the message from that sender in your Spam folder and click Not Spam to reverse your vote.