Run the pre-launch basics — auth records plus copy risk — in one advisory pass.

Before GTM Inboxes lets prospect traffic through a launch gate, DNS auth and content risk are among the inputs it checks. This tool runs the public versions of both so obvious blockers surface before setup work.

How it works

  • The domain's SPF, DKIM, DMARC, and MX records are checked over public DNS.
  • Optionally, a subject and body are scored with the same heuristics behind the spam checker — content is never stored.
  • Results are combined into an advisory checklist that mirrors, but does not replace, a workspace readiness report.

When to use it

  • Before onboarding a new client domain into sending infrastructure.
  • As a quick sanity pass before requesting launch-gate review.
  • When a sequence is ready but you have not verified the sending domain recently.

Common failure cases

  • Treating this public checklist as equivalent to a workspace readiness report — it checks a subset.
  • Fixing copy but skipping the DNS side, or vice versa; launch review looks at both.
  • Re-running checks before DNS changes have propagated and concluding the fix failed.

Examples

What good and bad signals look like

Ready-looking pass

All four auth records present, copy verdict: pass

The public basics look right. SMTP health, seed placement, and launch gates still apply.

Blocked early

No DMARC record and copy verdict: block

Two cheap-to-fix problems found before any infrastructure was provisioned.

What to do next

  • Fix flagged records with the SPF, DKIM, and DMARC generators.
  • Rewrite flagged copy before uploading the sequence to a sending platform.
  • For real launch decisions, use a workspace readiness report — it adds SMTP, launch-gate, and placement evidence.
Graduate to real readiness reports

Workspace readiness reports add SMTP, launch-gate, and seed-placement evidence to these checks.

Related tools and workflows

Email spam checker

The standalone version of the copy-risk check.

Cold email domain checker

Add domain age to the same pre-launch picture.

DNS & auth checker

Inspect the individual auth records behind the checklist.

Cold email inbox calculator

Turn a DNS or authentication check into a conservative inbox-capacity plan.

FAQ

Is passing this checker the same as being launch-ready?

No. It covers the public subset: DNS auth and copy risk. GTM Inboxes launch gates also require SMTP health, credential integrity, and seed-placement evidence before prospect traffic.

Is the email content I paste stored anywhere?

No. Content is scored for the request and never persisted or logged.