Domain Validation Check

How domain validation check supports cleaner email data

Validate email domains and identify invalid, parked or inactive domains before you use a list for email marketing or outreach. This check is one signal within a broader email list cleaning workflow. It should be reviewed together with the other available results instead of being treated as a guarantee that a future message will be delivered.

Why this result matters

Email data can become inaccurate when addresses are entered incorrectly, domains change, mail systems are reconfigured, or temporary accounts stop being used. Reviewing validation results before a campaign helps a sender separate obvious problems from addresses that need a business decision. Domain validation check gives your team a defined result to review alongside its own consent, suppression, and sending policies.

Where it fits in the ListCleaner process

ListCleaner combines this check with syntax, disposable-email, spam-trap, complainer, MX-server, domain, catch-all, hard-bounce, and Tor-exit-node checks. See the complete nine-step email cleaning process for the purpose of every check. For automation, the email verification API documentation explains how to upload a list, monitor its status, and download the cleaned CSV file.

Review results before sending

No list-cleaning result replaces permission, list ownership, suppression rules, or responsible campaign practices. Keep the original source data, document the rules used to include or exclude contacts, and review uncertain categories before sending. Google also publishes email sender guidelines that can help teams understand broader sending requirements. When you are ready, review ListCleaner pricing or start with the free credits available at signup.