Tools
Inspect the email signals behind delivery and signup risk.
Run focused email, authentication, reputation, and DNS checks at no cost.
Available tools
Disposable email checker
Detect disposable addresses and other risky signup signals.
Deliverability test
Review the DNS records that affect email delivery.
SPF, DKIM & DMARC
Inspect email authentication records.
Email header analyzer
Trace message routing and authentication results.
Blacklist checker
Check domain and IPv4 addresses against common DNSBLs.
MX lookup
Inspect mail servers, priorities, and TTL values.
DNS lookup
Query common DNS record types for a domain.