How does Yahoo determine placement?

Yahoo placement focuses on complaints and reputation:

Feedback loop emphasis: Yahoo heavily weights complaint data. High complaint rates cause quick placement degradation.

Sender reputation: IP and domain history at Yahoo specifically.

Authentication: SPF, DKIM, DMARC checks.

Sending patterns: Sudden volume spikes trigger scrutiny.

Yahoo tends to react quickly to negative signals. Complaint spikes can cause rapid spam-foldering.

Process FBL reports from Yahoo promptly. Complaint management is essential for Yahoo deliverability.

Yahoo listens closely to its users. Complaints speak loudly at this harbor.