If you have lost your license key, you can recover it using the official Mailbird License Key Retrieval Tool Access the tool via the Mailbird Support Page Enter the email address used during the original purchase. The key will be sent to that inbox immediately. Alternative: You can also find your key by logging into your MyMailbird Customer Portal or checking your original purchase confirmation email. Activating Your License
License holders (especially Business) get access to the "Customer Happiness Team". mailbird license key