What is Return Path (Validity) reputation data?

**Validity** (which acquired **Return Path**) provides **sender reputation** data aggregated from multiple sources. Their **Sender Score** rates IP addresses on a 0-100 scale based on complaint rates, **spam trap** hits, and sending patterns.

**Validity**'s data feeds their certification program and monitoring tools. High Sender Scores can qualify for certification benefits at participating MBPs. Low scores indicate deliverability risk requiring remediation.

Unlike blocklists (binary listed/not listed), **Sender Score** provides graduated reputation assessment. It's useful for benchmarking and trending but represents one view among many. Don't rely solely on **Sender Score**; cross-reference with **Postmaster Tools** and actual delivery metrics.