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How do feedback loops power anti-abuse analysis?

Feedback loops (FBLs) send complaint data directly from MBPs to senders. When recipients mark messages as spam, that report reaches the sender who can suppress complaining addresses and analyze patterns.

Anti-abuse networks analyze FBL data for threat detection. High complaint senders get flagged for investigation. Complaint patterns reveal compromised accounts, list quality problems, and content issues triggering recipient rejection.

Aggregated FBL data across many senders reveals industry-wide trends. Rising complaints about certain content types, sender categories, or techniques inform policy adjustments. This aggregate view helps networks stay ahead of evolving spam tactics.

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