Syntax Check: This method verifies that the email address is formatted correctly, following standard email syntax rules. Domain Check: This involves checking if the domain name of the email address is valid and has DNS records. MX Record Check: This step verifies that the domain has valid Mail Exchange (MX) records and can receive emails. Role-Based Account Detection: This identifies addresses like info@domain.com or support@domain.com, which are less likely to engage with your content. Disposable Email Detection: This identifies temporary email addresses often used for single-use purposes.