Specialist check
Email infrastructure readiness checker
Check observable infrastructure signals that can block a cold email launch. This does not test inbox placement.
- Checks
- Checks observable public infrastructure signals that can block a launch.
- Cannot tell
- It cannot observe inbox placement, complaints, list quality, content, or private provider reputation.
Expected time: about 5 to 20 seconds. Some public services can take longer.
Source: Live public DNS and public risk sources. No inbox-placement evidence is collected.
Questions
No. This checker reviews observable cold email infrastructure signals: MX, SPF, DKIM if you provide a selector, DMARC, blacklist status, domain age, and tracking-domain routing. Inbox placement also depends on reputation history, sending behavior, list quality, and mailbox-provider filtering.
DKIM is published under a selector chosen by the sending platform. If you know it, enter it for a real DKIM lookup. If you do not, the result marks DKIM as a review item instead of guessing.
Enter the branded click or open tracking host used by your outbound platform, such as links.yourdomain.com. If the campaign does not use a tracking domain, leave it blank and review that separately before launch.
It means the observable infrastructure for one domain looks usable. A real launch QA should run the same checks across every sending domain, inbox, and tracking domain, then produce a client-ready verdict.
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