Email Security Analysis of carnival.com
Complete verification of carnival.com's SPF, DKIM, DMARC, and MTA-STS records. Find out if this domain is protected against email spoofing.
Last updated: April 15, 2026
SPF
OKv=spf1 mx include:spf.protection.outlook.com include:mail.zendesk.com ip4:205.220.182.197 ip4:205.220.170.197 ip4:23.251.237.159/32 ip4:23.251.237.160/29 ip4:23.251.237.168/30 -allDKIM
OKSelectors: selector1, selector2, s1, s2, zendesk1, zendesk2DMARC
OKv=DMARC1; p=reject; rua=mailto:carnivaldmarc@carnival.com; pct=100MX
OKcarnival-com.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 carnival.com 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.