Email Rate‑Limit Reversal Signals Governance

When a major vendor cancels a planned abuse‑mitigation limit (here, Microsoft dropping a 2,000‑external‑recipient daily cap), it reveals how anti‑abuse policy is governed by commercial feedback loops, not just technical or security criteria. That dynamic affects spam economics, third‑party mailing services, deliverability norms, and regulatory debates about platform responsibility. — Vendor reversals on abuse controls show that private platform governance — not regulators — often determines what constraints consumers and firms face online, with implications for policy, competition, and digital public‑goods.