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Blog/Email Security/This article
DMARCMar 24, 202610 min read

DMARC Check API: How MSPs Query Email Auth Records Programmatically

MxToolbox works for one domain at a time. Here's how to check DMARC, SPF, DKIM, SSL, and open ports programmatically across your entire client base — with working code.

SC
Sarah Chen
Product Lead · ComplianceLayer
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Part 2 of 2DMARC for MSPs
← PreviousSPF vs DKIM vs DMARC: What MSPs Need to Know
SC
Sarah Chen
Product Lead · ComplianceLayer
ComplianceLayer research team analyzing security frameworks, compliance standards, and emerging threats.
TopicsDMARCAPIMSPEmail SecuritySPFAutomation
On this page
  • What "Checking DMARC" Actually Means
  • Manual vs. Programmatic: Why Scale Changes Everything
  • How to Check DMARC Programmatically
  • DMARC Check Patterns for MSP Workflows
  • When DMARC Fails: What to Actually Do
  • The Takeaway
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