How does Yahoo calculate sender reputation?

Yahoo calculates sender reputation through a combination of complaint rates, engagement signals, authentication results, and historical sending patterns. Complaint rates carry significant weight: Yahoo's feedback loop provides direct insight into how many recipients mark your mail as spam.

Authentication compliance contributes to baseline trust. Properly configured SPF, DKIM, and DMARC establish legitimacy, while failures trigger suspicion. Volume patterns matter too, with sudden spikes flagging potential spam campaigns.

Unlike Gmail's domain centric model, Yahoo still considers IP reputation heavily, especially for shared sending infrastructure. Your reputation develops over time based on consistent good behavior across these dimensions. Yahoo's systems aggregate signals across the combined Yahoo/AOL platform, meaning mistakes affect a broader audience.

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