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Blacklist & DNSA free tool by NullFortis
Email Health Check
Scan your whole setup
What is it?
A single combined view across SPF, DMARC, MX, BIMI, and blacklist status for a domain, rolled up into one overall grade.
Why it matters
Each individual check tells you one piece of the picture; a health check is the "how am I doing overall" summary — a good starting point before drilling into any one area.
Impact if ignored
It's diagnostic rather than something to fix directly — use it to decide where to focus first (e.g. MX is fine, but DMARC needs attention).
Common use cases
- First stop when auditing a new or unfamiliar domain
- A periodic self-check before a major campaign
- A quick gut-check during a security review