Free tool
Is your email domain secure against spoofing?
Enter your email address or domain and we automatically scan SPF, DMARC, DKIM, and MX records. Find out if your email provider is properly configured to prevent impersonation attacks.
DNS Security Scanner
Email Domain Security Check
Enter your email address or domain name to check if SPF, DKIM, and DMARC are properly configured. These DNS records protect your domain from email spoofing and phishing attacks.
What we check
SPF (Sender Policy Framework)
Specifies which servers are authorized to send email for your domain.
DMARC (Domain-based Message Authentication)
Tells receivers what to do with emails that fail SPF/DKIM checks.
DKIM (DomainKeys Identified Mail)
Adds a digital signature to emails to verify they were not altered in transit.
MX Records
Identifies your mail servers and provider for provider-specific guidance.
Results
Enter a domain and press Scan
DNS security results will appear here