Email List Cleaner
EmailListCleaner.org is a privacy-first, free and open source email list cleaner. It validates a list of email addresses for free and in a way that no one, including us, has access to them. How Does Email Validation Work? Email List Cleaner performs syntax checks to see whether an email address looks like a valid email address, and it also confirms that an email address has a valid domain name that has been configured to accept emails. This means that if Email List Cleaner says an email address is invalid, it is very likely invalid. But if it says an email address looks valid, it means just that, that it looks valid. When you use this tool, almost the entire email address validation process happens inside your browser.

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Email List Cleaner is a privacy-first, free and open-source tool that validates email addresses. It performs syntax checks and confirms that an email address has a valid domain configured to accept emails, all while ensuring that user data remains private.
Email List Cleaner validates email addresses by performing syntax checks to determine if an email address appears valid and confirming that the domain name is configured to accept emails. Most of the validation process occurs within the user's browser, with only the domain parts sent to Google's DNS service for verification.
Email List Cleaner prioritizes user privacy by ensuring that no one, including the service itself, has access to the email addresses being validated. The validation process is designed to occur primarily in the user's browser, minimizing data exposure.
Email List Cleaner can detect and flag disposable email addresses, role-based email addresses, and it can also remove duplicate email addresses from the list being validated.
While Email List Cleaner provides a reliable validation process, it is important to note that it cannot guarantee perfect accuracy in determining whether an email address is valid. The tool can indicate if an email address looks valid, but it cannot confirm validity with absolute certainty.