Learning Resources
Academic Links
- DMARC Academy - Courses explaining DMARC fundamentals.
- DMARC.org Email Authentication 101 - Digestible presentation on SPF, DKIM, DMARC, and how they function.
- DMARC Reporting Sources and Compliance - This is a list of DMARC compliance capability of particular sending sources. Very useful for planning implementation.
- LearnDMARC.com - An interactive Email Authentication tool that steps through SPF/DKIM authentication, and DMARC alignment/results.
- M3AAWG Email Authentication Best Practices - Industry consensus on best-practice recommendations for both Senders and Receivers.
IETF RFC Links
- SPF RFC 7208 - Sender Policy Framework (Standards Track)
- DKIM RFC 6376 - Domain Keys Identified Mail (Standards Track)
- DMARC RFC 9989 - Domain-based Message Authentication, Reporting, and Conformance (Proposed Standard)
- ARC RFC 8617 - Authenticated Received Chain (Experimental)
DMARC Analytics
Global DMARC Report Analysis Vendors
- Postmark - (by ActiveCampaign) Sends free weekly email reports of email sources. (Truncated at 100k IPs reported per-source.)
- Cloudflare - Free for the time being, currently in public beta.
- URIports - $1-tier available.
- DMARC Digests - (by ActiveCampaign)
- DMARC Defender - Free-tier available
- DNS Doctor - Free-tier available
- Eunetic - Free-tier available.
- DomainVerity - Free-tier available
- Mail Tower
- DMARCOFF
- DMARCwise - Free-tier available.
- MyDMARC - Free-tier available.
- Email Inspect - Free-tier available.
- DMARC Busta - Free-tier available.
- MailHardener - Free-tier available.
- Palisade - (Beta)
- DMARCTrust
- CloudScope SenderClarity - Free trial available.
- DMARCDKIM.com - Free-tier available.
- RefineEmail - Free trial available.
- DMARCguard - Free-tier available.
- PowerDMARC - Free-tier available.
- Report-URI - Free-tier available.
- Dmarcian - Free-tier available.
- DMARCEye - Free tier available.
- RacterMX
- VerifyDMARC - In public beta.
- Fraudmarc
- MXtoolbox
- Sendmarc - Free-tier available.
- DMARCPal
- EasyDMARC - Free-tier available.
- Send-Shield
- ReachMail
- spfXio
- Kevlarr - Free-tier available.
- SendForensics
- KDmarc
- Glockapps
- DMARC Report - Free-tier available.
- GoDMARC
- SimpleDMARC
- Skysnag - Free-tier available.
- DMARCly
- OnDMARC - (by Red Sift)
Part of the same group as above, but ordered alphabetically due to unavailability of public pricing information.
- Agari Brand Protection
- Barracuda Domain Fraud Protection
- DMARC360 - Free-tier available.
- DMARCAnalyzer - (by Mimecast)
- DMARC Director
- DMARC Hub - Early Access
- DmarcSignal - Early Access
- EmailAuth.io
- Everest - (by Validity)
- grimDMARC - Early Access
- InboxMonster
- LetsDMARC - Free-tier available.
- MailMonitor - Free-tier available.
- Nameshield
- Netcraft Fraud Detection
- Postmastery
- ProDMARC
- Proofpoint Email Fraud Defense - Note: If you use Hosted Proofpoint POD or PPS, Essentials, or send to Proofpoint customers, you must use EFD to see data processed by their infrastructure for your domains; Currently DMARC reports are not sent externally.
- Stellastra
- Suped
- Valimail - Free-tier available.
Region-Specific DMARC Report Analysis Vendors
- Centera DMARC Compliance - Services the EU.
- DMARC 25 - Services the Asia-Pacific region.
- DMARC Advisor - (Formerly Dmarcian Europe) Only services EU/Africa/RU.
- DMARC Expert - Services France/EU.
- Dmarced - Services EU.
- DMARCLytics
- DMARC Monitor - Services India.
- DMARC SaaS - Services the Netherlands/EU.
- Merox - Services France/EU.
Miscellaneous Feature DMARC Offerings
- DMARC High Definition - Through participating receivers, provides granular information on a per-sender email address basis from DMARC reports
Self-Hosted Solutions
Aggregate Report Ingestion
- DMARC-SRG - Basically the same as Techsneeze, but with a few extra metrics, no graphs though.
- DMARC Lighthouse
- DMARC Visualizer - Leverages parseddmarc and Grafana.
- Docker DMARC Reports - Dockerized version of Techsneeze; the buttons look a bit shinier.
- DomainAware Parseddmarc - Must be used with grafana and/or splunk custom dashboards to make the data useful.
- ELK DMARC - Uses Docker, ELK, and Kibana to display data.
- DMARC report viewer
- Fraudmarc Community Edition - Requires AWS.
- Open-DMARC-Analyzer - Leverages dmarcts parsed reports to provide graphs and geographical sender IP info.
- Parse-DMARC
- Techsneeze DMARCts report viewer - A list of DMARC RUA reports with pass/fail next to them.
- Splunk TA-DMARC add-on - Needs custom dashboarding in Splunk to be useful beyond just ingestion.
SPF Macros
- Expurgate - Self-hosted dynamic SPF Macro solution.
SPF Flattening
- WordtotheWise SPF Minimizer - DIY SPF flattening. Use with care.
- Cloudflare SPF Flattener - For use with Cloudflare.
- SPF-Tools
- DMARCduty
Email Authentication Tools
SPF Policy Testers
- Vamsoft SPF Policy tester - This is the most verbose SPF policy evaluator that exists currently.
- Scott Kitterman's SPF Tool - Pyspf evaluator.
- MXtoolbox SPF tester - Works for most cases, but can fail on certain SPF macro evaluations.
SPF Lookup and Syntax Validators
- Campaign Cleaner SPF Lookup
- DMARCAnalyzer SPF Checker
- Dmarcian SPF Surveyor
- Dmarcly SPF Record Checker - Does not validate SPF macros.
- DNSChecker SPF Validator
- EasyDMARC SPF Checker
- Fraudmarc Domain SPF Tool
- Mailhardener SPF tool
- Mail Tower SPF Checker
- PowerDMARC PowerTool
- Redsift SPF Checker
- Sendmarc SPF Lookup Tool
- SpfXio Domain Inspector
- URIports SPF Validator
- Vamsoft SPF Syntax Validator
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