First-page decision brief
First-page summary with score, risks and next actions.
Email deliverability audit
Find what pushes your emails toward spam.
Check your domain for SPF, DKIM, DMARC and mail-security issues, then get prioritized fixes.
SPF · DKIM · DMARC · MX · MTA-STS · TLS-RPT
Read the guides →Example audit
Example result
2 findings
SPF configurationVALID RECORD
SPF record found · 4 DNS lookups
DKIM configurationSELECTOR FOUND
Selector: google
DMARC policyMONITORING
p=none · no enforcement requested
MXRECORDS FOUND
Mail exchanger records found
MTA-STSNOT ENABLED
Optional inbound TLS hardening
TLS-RPTCONFIGURED
TLS failure reporting record found
Recommended
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.
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.
Troubleshooting guides
Troubleshoot common email problems
Guides for the same problems the scan checks
View email deliverability guides →
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.