These tools use a combination of algorithms and databases to identify role-based email addresses. Here's a basic outline of how they work:
1. Database Matching: The tool compares the email addresses in your list to a database of known role-based addresses. 2. Pattern Recognition: The tool looks for patterns and keywords commonly associated with role-based addresses (e.g., "support", "info", "admin"). 3. Validation: Some advanced tools also perform additional validation checks, such as MX record lookups, to confirm whether an email address is role-based.