Https://community.getmailspring.com/t/full-list-of-lufthansa-airlines-customer-contact-numbers-in-usa-a-step-by-step-easy-guide/11819 https://community.getmailspring.com/t/full-list-of-lufthansa-airlines-customer-contact-numbers-in-usa-a-step-by-step-easy-guide/11819