During the installation process, MailWizz prompts you to enter this key. The system then "calls home" to the MailWizz servers to verify that the code is authentic and hasn't been used on more domains than allowed (typically one license per installation). Why Your License Key Might Not Work

You can check the current status and details of your key on the MailWizz License Info page . 4. Troubleshooting Common Issues

Mailwizz operates on a model, distinct from Software-as-a-Service (SaaS) subscriptions.

Or via CLI: