Report unsolicited mail
If you've been spammed by someone you don't know, don't reply to the sender or follow any removal instructions that might be included. This may alert the sender that your email address is open and available to receive mail, which greatly increases its value. If you respond, your address may be placed on more lists, resulting in more spam.
Instead, use the Spam button above each message to report the mail to Yahoo In this way the filters learn specifically what you consider spam. The more you train the filters by marking messages as spam or not spam, the better the filters will work for you. We use these reports to find the latest tricks and techniques spammers are using to evade our filters so that they can be improved for everyone. Learn more about reporting spam.
Reports of spam originating from Yahoo Mail accounts (e.g., user@yahoo.com) receive special attention. As spamming is expressly prohibited in the Yahoo Terms of Service, any account caught spamming will be subject to termination.
If you don't have a Yahoo account, but want to report spam from a Yahoo address
The fastest and most effective way to report spam is to mark the email as spam directly in your inbox, even if you don't have a Yahoo Mail account--just look for a Spam, Report Spam, or Junk Mail button in your inbox. Even though you may be using a different email service, if the spam offender is a Yahoo user, the report will be sent to us.
Every major email provider has a system for reporting spam or junk mail, and information about spammers is shared across providers. As a result, if a Gmail user marks a message from a Yahoo user as spam in a Gmail account, the report will be sent to us, and we can take appropriate action when necessary according to our Terms of Service. The fight against spam is much bigger than just Yahoo, and we partner with other email providers including, but not limited to Gmail, Hotmail, and AOL to identify spammers and prevent them from sending mail to or from our accounts.
