MailWizz will attempt to contact the validation server immediately.
| Error Message | Cause | Solution | |---------------|-------|----------| | License key is invalid | Typo or wrong key | Re-copy from purchase source (no extra spaces). | | License domain mismatch | Key is registered to a different domain | Go to MailWizz website → License Manager → Update domain to your current one. | | License key expired | Subscription lapsed (if yearly plan) | Renew your license at MailWizz official site. | | Connection timeout | Server cannot reach MailWizz API | Check outgoing HTTPS (port 443) and firewall. | | Key already in use | Same key used on multiple live domains | Purchase additional license or deactivate old domain. | mailwizz license key install
: Select where you bought the software (MailWizz site or Envato). Purchase Code : Paste your license key here. MailWizz will attempt to contact the validation server
On the "Welcome" screen, you will see a field for the Purchase Code . Paste your license key here and select your purchase source (e.g., Envato). | | License key expired | Subscription lapsed
Ensure your server meets all PHP and extension requirements. Click "Next." Step 3: License Activation You will reach a screen asking for your .
⚠️ This method overrides the DB; remove the line once you update DB license.