Authentication Security
DMARC Policy Enforcement Impact Simulator
Simulate authentication pass/fail rates and outbound rejection volume moving from p=none to p=quarantine and p=reject.
DMARC Pass Rate
99.9%
Either SPF or DKIM aligned
Blocked / Quarantined Volume
800 msgs
Unauthenticated or spoofed
Domain Phishing Immunity
100% BLOCKED
Spoofed emails rejected at MX
Google / Yahoo Compliance
FULL PASS
Satisfies 2024 Sender Policy
Generated DNS DMARC Record Syntax
_dmarc.yourdomain.com. IN TXT “v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-reports@autosmtp.io; sp=reject; aspf=r; adkim=r;”
Automate DMARC Report Ingestion & Forensic Alignment
AutoSMTP ingests XML aggregate and forensic reports to give you complete sender visibility.
The DMARC Enforcement Roadmap: From p=none to p=reject
DMARC (Domain-based Message Authentication, Reporting, and Conformance) unifies SPF and DKIM. While setting p=none allows you to monitor sending sources, it provides zero protection against domain impersonation.
Phase 1: Discovery (p=none)
Audit all legitimate third-party sending streams (CRMs, transactional tools, support desks) via RUA aggregate reporting without impacting deliverability.
Phase 2: Quarantine (p=quarantine)
Route unaligned or forged messages directly into the recipient’s spam folder. Provides immediate security while verifying that no critical business systems are failing alignment.
Phase 3: Reject (p=reject)
The ultimate security posture. Mailbox providers drop spoofed messages directly at the SMTP handshake before they can ever reach the recipient inbox.