To be eligible for the Yahoo! Feedback Loop (FBL), you must:
- Authenticate your outbound emails with either DomainKeys or DomainKeys Identified Mail (DKIM), or both.
- Talk to your email administrator, hosting provider or email service provider about authenticating your email. If you don't currently authenticate outbound emails, you only have to use DKIM. DKIM is the updated version of DomainKeys.
- Have a Yahoo! ID
- Yahoo! provides an account sign-up page to obtain a Yahoo! ID.