Email Security Analysis of sapphireholidays.co.uk
Complete verification of sapphireholidays.co.uk's SPF, DKIM, DMARC, and MTA-STS records. Find out if this domain is protected against email spoofing.
Last updated: April 14, 2026
SPF
OKv=spf1 mx ip4:195.226.54.69 include:spf.protection.outlook.com include:_spf.atlassian.net include:u19560440.wl191.sendgrid.net include:enchanthq.net include:spf.uk.signature365.net ~allDKIM
OKSelectors: selector1, s1, s2DMARC
OKv=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;MX
OKsapphireholidays-co-uk.mail.protection.outlook.comRecommendations
1Add MTA-STS to enforce TLS encryption for incoming emails
Without MTA-STS, an attacker performing a man-in-the-middle attack can downgrade the connection between mail servers to plaintext, intercepting emails in transit. MTA-STS tells sending servers to only deliver via TLS with a valid certificate, preventing downgrade attacks.
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Analyze sapphireholidays.co.uk liveGuides to understand these results
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.