Email Security Analysis of custompac.co.uk
Complete verification of custompac.co.uk's SPF, DKIM, DMARC, and MTA-STS records. Find out if this domain is protected against email spoofing.
Last updated: April 15, 2026
100A
This domain is protected against spoofing
SPF
OKv=spf1 ip4:194.164.19.50 include:spf.protection.outlook.com -allDKIM
OKSelectors: selector1, selector2DMARC
OKv=DMARC1; p=reject; pct=100; rua=mailto:custompacltd-d@dmarc.report-uri.com;MX
OKcustompac-co-uk.mail.protection.outlook.comMTA-STS
OKv=STSv1; id=20260414100000Z;Run a live analysis
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SPF Guide
Understand how SPF defines which servers are authorized to send emails for a domain.
DKIM Guide
Discover how DKIM cryptographically signs your emails to guarantee their authenticity.
DMARC Guide
Learn how DMARC orchestrates SPF and DKIM to protect your domain.
MTA-STS Guide
Learn how MTA-STS enforces TLS encryption to protect your emails in transit.
SPF vs DKIM vs DMARC
Compare the three protocols and understand how they work together.