--- title: "DMARC Monitoring - Real-Time Email Authentication Alerts | DMARC Report" description: "Monitor SPF, DKIM, and DMARC authentication across every domain you own. Real-time alerts for DNS changes, unauthorized senders, and compliance thresholds. Unlimited domains with 24/7 monitoring." image: "https://dmarcreport.com/images/og-default.png" canonical: "https://dmarcreport.com/use-dmarcreports-to-monitor-your-domains/" --- Continuous Monitoring # Monitor authentication across every domain you own DNS records change, providers update IP ranges, and misconfigurations creep in. Continuous monitoring catches problems before they affect deliverability. [ Start Free Trial → ](https://app.dmarcreport.com/) [View Pricing](/pricing/) Protocol Coverage ## SPF, DKIM, and DMARC - watched 24/7 All three email authentication protocols monitored continuously. Know the moment something changes or breaks. SPF Track DNS lookups in real time, detect include changes, and get alerted when approaching the 10-lookup limit. Visualize the full include tree to understand exactly what is authorized. - Lookup count tracking - Include tree visualization - IP range change detection - Flattening recommendations DKIM Monitor key rotation across all sending sources. Auto-discover selectors for 50+ providers and verify that signatures remain valid as keys age. - Selector auto-discovery - Key age tracking - Rotation reminders - Signature validation DMARC Watch policy changes, alignment mode shifts, and reporting configuration. Get alerted when records are modified, deleted, or when alignment rates shift. - Policy change alerts - Alignment mode tracking - Report URI validation - Enforcement readiness Alert System ## Know the moment something changes Configurable alerts via email, webhook, or Slack. Every alert includes the full context you need to act - what changed, when, and what to do next. - Authentication failure alerts when pass rates drop - DNS record change notifications with before/after diff - New unauthorized sender detection in real time - Compliance threshold alerts for policy migration readiness Authentication Failure via Email · 2 min ago critical DMARC pass rate for example.com dropped below 90% threshold. 47 messages from 91.203.x.x failed both SPF and DKIM alignment. DNS Record Change via Webhook · 2 min ago warning SPF record for marketing.example.com modified. New include:\_spf.vendor.com added. Previous record backed up. New Unauthorized Sender via Slack · 2 min ago critical Unknown source 185.70.x.x sending 23 messages as ceo@example.com. SPF: fail, DKIM: none. Likely spoofing attempt. Compliance Threshold via Email · 2 min ago info Domain example.com reached 95% DMARC alignment. Ready to move from p=quarantine to p=reject. DNS Change History - example.com SPF Record - 2 hours ago \- Removed v=spf1 include:\_spf.google.com include:sendgrid.net include:old-vendor.com \-all \+ Added v=spf1 include:\_spf.google.com include:sendgrid.net include:new-vendor.com \-all DNS lookups: 6 → 6 (within limit) Snapshot saved · Rollback available DNS Intelligence ## DNS change detection with full history Every SPF, DKIM, and DMARC record change is detected, logged, and diffed. See exactly what changed, when it changed, and whether the change introduced a risk. Roll back to a known-good state with one click. - Before/after record comparison for every change - Full change history with timestamps and attribution - Automatic risk assessment for each modification - One-click rollback to known-good DNS state - Snapshot backups taken before every detected change Multi-Domain ## Every domain, one dashboard Monitor all your domains and subdomains from a single view. Spot the domains that need attention instantly with color-coded health indicators. Domain Overview - 5 domains monitored Domain Policy Pass Rate Senders Status example.com p=reject 98.4% 8 healthy marketing.example.com p=quarantine 91.2% 5 healthy hr.example.com p=none 72.6% 3 attention legacy-brand.com p=reject 99.1% 2 healthy newacquisition.io p=none 45.3% 11 critical Unlimited Domains Monitored 24/7 Continuous Monitoring < 5 min Alert Response Time 200+ Vendors Classified Thresholds ## Customizable alert thresholds Set thresholds that match your security posture. Conservative defaults for production domains, relaxed thresholds during onboarding. Every threshold is adjustable per domain. [See all platform features → ](/features/) Alert Thresholds - example.com DMARC Pass Rate 90% Alert when overall authentication falls below your target. Catches regressions from provider changes or misconfigurations. SPF Lookup Count 8/10 Warning when approaching the 10-lookup limit. Prevents hard failures before they impact deliverability. New Source Detection Any Immediate notification when a previously unseen IP sends email as your domain. Zero tolerance for shadow senders. DKIM Key Age 90 days Reminder to rotate DKIM keys on schedule. Stale keys increase the window for cryptographic compromise. Policy Readiness 95% Notification when alignment rates are high enough to safely move to a stricter DMARC policy. Report Volume Drop 50% Alert when daily aggregate report volume drops significantly. May indicate DNS issues or receivers no longer sending reports. ## Start monitoring your domains today Free trial - no credit card required. Add unlimited domains and get alerts within minutes. [Start Free Trial](https://app.dmarcreport.com/) ## What Teams Say About Our Monitoring ![G2 Leader - DMARC](https://media.mailhop.org/dmarcreport/images/g2-badges/DMARC_Leader_Leader.png) Rated 4.8/5 on G2 · 469 verified reviews ![G2 Momentum Leader - DMARC](https://media.mailhop.org/dmarcreport/images/g2-badges/DMARC_MomentumLeader_Leader.png) ZK Zunaid K. Director 5/5 ### "Essential tool for email delivery" This tool helps us to implement DMARC reporting for our domains in an easy to use manner. 8/8/2024Verified on G2 VU Verified User in Information Technology and Services 5/5 ### "Best security tool for your own domains" The weekly reports help me a lot to analyze quickly the emails sent from my domains and that gives me peace of mind. 8/31/2022Verified on G2 LH Larry H. Research & Development Manager 5/5 ### "Good tool to buy" I have used many tools for monitoring DMARC reports. But DMARC Report is a good tool to use. 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