Email Security Analysis of comet-group.com

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

Last updated: April 15, 2026

52C

This domain is vulnerable to spoofing

v=spf1 include:_u.comet-group.com._spf.dmarcla.com -all

Selectors: selector1

Missing

No record found

Missing

No record found

Warning

v=STSv1; id=1690283921169

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.
2Fix your MTA-STS policy file — it could not be fetched
Your domain has an MTA-STS DNS record, but the policy file at https://mta-sts.yourdomain/.well-known/mta-sts.txt is unreachable. Without a valid policy file, MTA-STS provides no protection. Check that the subdomain mta-sts.yourdomain resolves correctly and serves the policy over HTTPS.

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

Run a live analysis

The results above are updated daily. For an instant check of comet-group.com, run a live analysis.

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.