Know what's killing your email deliverability.
Live SPF, DMARC, MX, SSL, blacklist, and redirect checks across your domains — with the exact DNS records to fix what's broken.
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Deliverability fails quietly.
Silent inbox drops.
SPF and DMARC misconfigurations land mail in spam without bouncing. Most teams find out from sales.
Invisible blacklist hits.
Spamhaus DBL and SURBL listings are checked by every major receiver — and they don't notify you.
TLS lapses break tracking.
Expired certificates break click-tracking and landing flows the moment they lapse.
Seven checks. Live infrastructure. Source-attributed.
SPF
TXT lookup. Flags missing or malformed records.
DMARC
Reads _dmarc.<domain>. Flags missing records and weak monitor-only policies.
Mail exchanger (MX)
Resolves MX records. Flags domains with no MX configured.
TLS / SSL certificate
Live TLS handshake. Issuer, expiry, days remaining.
Spamhaus DBL
Queries the Spamhaus Domain Block List.
SURBL
Queries SURBL and decodes the bitmask response.
Redirect chain
Walks every hop. Flags loops, long chains, non-HTTPS hops.
From paste to fix in under a minute.
Submit assets.
Paste or upload domains, subdomains, URLs, or inbox addresses.
Run live checks.
Authoritative DNS, TLS handshakes, and reputation feeds — in parallel.
Apply the fixes.
Each finding ships with the exact DNS record to publish. One click to copy.
See TrustMX in action.
Failing checks rise to the top. Each finding ships with the exact DNS record to publish — host, type, and value, one click to copy.
See what your infrastructure is actually doing.
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