Email Security Analysis of oerjanhoel.com

Complete verification of oerjanhoel.com's SPF, DKIM, DMARC, and MTA-STS records. Find out if this domain is protected against email spoofing.

Last updated: April 15, 2026

25F

This domain is vulnerable to spoofing

Missing

No record found

Selectors: dkim_cname_detected

Missing

No record found

Missing

No record found

Missing

No record found

1Add a DMARC record: _dmarc.yourdomain TXT "v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:dmarc@yourdomain"
Without DMARC, receiving mail servers have no way to know what to do when SPF or DKIM checks fail. Anyone can send emails pretending to be from your domain, and most servers will deliver them. DMARC with p=reject tells receivers to block unauthorized emails entirely.
2Add an SPF record: yourdomain TXT "v=spf1 include:yourprovider -all"
SPF tells receiving servers which IP addresses are allowed to send email for your domain. Without it, any server in the world can send emails appearing to come from you. Adding SPF with -all (hardfail) means unauthorized senders will be rejected.
3Add 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.

If you're not sure how to apply these fixes, get in touch and we'll help you out.

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Understand how SPF defines which servers are authorized to send emails for a domain.

Discover how DKIM cryptographically signs your emails to guarantee their authenticity.

Learn how DMARC orchestrates SPF and DKIM to protect your domain.

Learn how MTA-STS enforces TLS encryption to protect your emails in transit.

Compare the three protocols and understand how they work together.