What is GDPR? How does GDPR affect email marketing? What is double opt-in (for GDPR)? Who should create a GDPR compliant email marketing process? How do I create a GDPR compliant email marketing process with Vtiger? How do I configure double opt-in? How does the double opt-in confirmation work? How do I obtain an email opt-in from my leads and customers through a webform? Can I obtain a double opt-in from a customer through a webform? A contact's Email Opt-in field has changed to Opted out (contact). Why? Which email address is used to send the double opt-in confirmation? What are the rights of customers according to the GDPR law?