First-page decision brief
Score, top actions and risk flags in a short PDF that is easy to share with a non-specialist stakeholder.
Email deliverability audit
Find what pushes your emails toward spam.
Find the technical issues hurting your email deliverability and get clear, prioritized fixes.
SPF, DKIM, DMARC, MX, MTA-STS and TLS-RPT
Best for teams that want a fast DNS-level diagnosis before touching SPF, DKIM, DMARC or mail transport hardening settings.
Quick: first-page summary with score, risks and next actions. Full: complete PDF with hardening checks, evidence and implementation guidance.
No account
No install
Results in seconds
Free scan preview
Run a free scan to see your deliverability diagnosis, top findings and next fixes here...
6 checks
SPF, DKIM, DMARC, MX, MTA-STS and TLS-RPT in one pass.
Fast scan
Useful before DNS changes, mailbox warm-up or provider migrations turn into guesswork.
PDF option
A one-page decision brief or a fuller implementation report you can forward internally.
Full implementation report
The quick summary plus authentication details, hardening checks and prioritized DNS guidance you can implement.
What makes the audit useful
From raw DNS records to a deliverability diagnosis your team can act on.
Core sender authentication
We check SPF, DKIM, DMARC and MX first so the most common technical risk factors for spam placement are visible immediately.
Transport protection signals
MTA-STS and TLS-RPT show whether inbound mail transport is hardened and whether TLS failures can be monitored.
Next steps that map to DNS work
The output is designed to help someone decide what to change next, not just confirm that records exist.
What the audit checks
- Whether SPF is present, parsable and likely to authorize the right senders.
- Whether DKIM appears configured and detectable in DNS.
- Whether DMARC exists and what policy and alignment posture it suggests.
- Whether MX records point cleanly to an intended mail provider.
- Whether MTA-STS is visible for stronger inbound SMTP transport security.
- Whether TLS-RPT is published so mail TLS failures can be reported instead of staying silent.
Guides for the same problems the scan checks
SPF check
Allowed senders, DNS lookup limit and common SPF errors.
DKIM check
Selectors, signing and provider setup basics.
DMARC check
Policy, alignment and reporting.
MTA-STS
Inbound TLS enforcement for SMTP transport security.
TLS-RPT
TLS failure reporting for delivery diagnostics.
Emails going to spam
Fast checklist: auth, alignment, content and reputation.
FAQ
Does this scan my server?
No. The audit is DNS and public mail policy signals only.
Can this guarantee inbox placement?
No tool can guarantee that. Strong authentication, alignment and transport hygiene improve your odds significantly.
Why pay for the PDF if the scan is free?
The free preview is short by design. The PDF is meant to be easier to forward, explain and implement from.