If you've been prompted to reset your password or received a security notice from Yahoo, you can learn more about your account security on our help page.

Limits on sending email in Yahoo7 Mail

In order to better enforce anti-spam policies, Yahoo7 does not disclose the number of recipients or emails that can be sent at one time.

If you've received a notification that a limit has been met, you'll need to wait a set amount of time before you can send more emails. Most sending limit notifications inform you of how long you'll have to wait.