09:42 AM PST: Errors accessing Business Mail from Yahoo! Mail web interface
Some Yahoo! Small Business customers may encounter errors or a “looping” behavior when clicking the link from their Yahoo! Mail webmail page to their Yahoo! Business Mail account. If you encounter this problem, you may see that your browser reloads the Yahoo! Mail page, displaying your free Mail account, or redirects you to the Yahoo! home page.
Our team is working to resolve this issue as soon as possible.