What are toxicity scores?
Toxicity scores estimate risk associated with email addresses beyond simple valid/invalid. They aggregate signals indicating potential spam traps, complaint likelihood, or association with problematic sending. Higher toxicity suggests higher risk.
Score components may include: domain reputation, address age patterns, association with known complaint sources, similarity to spam trap patterns, and historical behavior from shared databases.
Use toxicity scores for: prioritizing suppression decisions, segmenting risky addresses for careful treatment, and evaluating new list quality. Scores provide graduated risk assessment rather than binary keep/remove decisions.
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