DMARC's Future: Ignoring Email Authentication is No Longer an Option
Security Boulevard, Wednesday, May 14th, 2025
If you caught our recent post, What Microsoft's New DMARC Policy Means for High-Volume Senders, you're already familiar with the major changes Microsoft has made to tighten DMARC enforcement as of May 5, 2025. As a reminder, any mass sender (sending over 5,000 emails per day) without proper DMARC alignment will be outright rejected by outlook from now on.
But let's be clear, this isn't the start of the DMARC tightening trend. The early signs were back in 2023, when Google and Yahoo announced plans to start enforcing p=none policies beginning February 2024, signaling a broader industry shift toward stricter email authentication. Put simply, this isn't a problem that can be swept under the rug any longer.
As we look ahead, it's clear that DMARC's role in proper email authentication will only become more important. Here's a look at what's next for DMARC and why organizations can't afford to lag in their adoption.