Email address to validate (e.g., '[email protected]' or 'Name [email protected]')
Whether email sending is permitted
Mail service provider (e.g., 'Mailgun')
Relay server status
Sender's first name
Sender's last name
API key for mail service
User ID for tracking
User's email address
Server reference identifier
Reply-to address (optional)
Whether to use SMTP for Mailgun
SMTP password for Mailgun