This is usually a proxy issue. If your proxies are blacklisted by mail providers, the checker will return everything as "Bad."
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is often categorized as a "Cracking Tool." While it can be used for legitimate email system security testing, using it to access accounts without authorization is illegal and violates the terms of service of most providers. Always ensure you have explicit permission to test the accounts in your list. during the installation process? Hackus Mail Checker Install [better] hackus mail checker install