Validity Launches Heatwave Blocklist to Combat Unethical Cold Email Practices and Synthetic Domain Warming

Built from millions of targeted data signals, Heatwave helps mailbox providers and ESPs identify manufactured send reputation through fake engagement. Validity, the leading provider of Enterprise AI solutions for digital marketers, announces Validity Heatwave, a new email blocklist that identifies unethical cold email practices including artificial domain warming. Drawing on an analysis of millions of targeted […]

Last updated Sep 3, 2026 by ATDb automated enrichment