USA B2C email decays at 2-3% monthly—but that’s the average. During peak churn periods (January after holidays, summer moves, back-to-school), monthly decay can spike to 5-7%. Consumers frequently abandon free email accounts, switch providers, or create aliases for promotions. Disposable email usage surges around major sales events like Black Friday. Without weekly hygiene, a 90-day-o... https://www.b2clead.org/usa-email-list/