Learn how to avoid risking your account security.
Marking spam in Yahoo Mail Report Spam : General Spam emails from a contact or company Report a Hacked Account
Review your account settings Security questions:
Stopping your account from sending spam For starters, your account has most likely been compromised . Here's what to do:
This video shows you what to do if you are locked out of your Yahoo Account , and suspect that it has been compromised .
For more account protection tips, see: Safeguarding your Yahoo account . How an account can be compromised .
when changes are made to your account. If you believe your account has been compromised , immediately change your password to secure your account and verify no information has been changed .
Change your password and choose it wisely There's no better way to protect your account from being compromised than to change your password regularly. Creating a secure, strong password will always minimize risk to your account.
If you think someone is trying to access your account , see our help article about compromised accounts right away.
If your mail servers are encountering persistent deferrals (i.e., 4xx SMTP error messages in your logs) when connecting to Yahoo Mail servers, this may indicate that we are seeing unusual traffic or are getting considerable complaints regarding emails coming from your servers. We encourage you to examine your outbound mail queues to ensure that unsolicited emails are not being sent by any users or compromised machines within your network.