400,000 DMARC boost after Microsoft’s high-volume sender update
Microsoft’s decision to join Google and Yahoo in enforcing stricter rules for high-volume senders has triggered an immediate response across the internet. In the last 30 days alone, 406,042 new domains have deployed Domain‑based Message Authentication, Reporting & Conformance (DMARC), pushing the global total to 13.09 million. While not all domains will be exclusive Outlook users,…
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