Mail DNS Diff — MX, SPF & DMARC changes
Check your mail DNS. Keep a before-and-after receipt.
https://mail-diff.qu4zr.com/
Look up live MX, SPF and DMARC records without an account. Keep a dated baseline, compare confirmed changes, share a public receipt or README badge, and choose verified-email alerts or weekly reminders. Free, no payments. DNS observations only: this does not test email delivery.
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