How are spam complaints handled by Yahoo/AOL?

Yahoo and AOL (now unified under Yahoo) process spam complaints through several mechanisms that affect senders and inform filtering.

Complaints adjust sender reputation in Yahoo's databases. High complaint rates cause reputation degradation that affects deliverability for all your mail to Yahoo/AOL users.

Complaints are reported through the CFL to senders who have registered. This notification enables proactive list management.

Complaint patterns inform filtering decisions. Senders generating consistent complaints face increasingly aggressive filtering. Sudden complaint spikes trigger immediate scrutiny.

The complaint threshold Yahoo considers problematic is around 0.1%. Rates above this indicate problems that need addressing.

Every complaint is recorded and counted. Yahoo uses this data to protect their users and inform their sender reputation assessments.

Was this answer helpful?

Thanks for your feedback!