Mailwizz License Key Install __link__ May 2026

Prerequisites

• Server: Ensure you have a server with a suitable environment. MailWizz can run on a server with PHP and MySQL.
• PHP Version: A compatible version of PHP (check the MailWizz documentation for the required version).
• MySQL Version: A compatible version of MySQL.

Option C: Via Configuration File (Temporary Override)

For advanced users – this forces a license without DB change.

1. Open /apps/common/config/main-custom.php (create if missing).
2. Add:

<?php
define('MW_LICENSE_KEY', 'YOUR-ACTUAL-LICENSE-KEY');

3. Save file. MailWizz will use this key instead of the DB value.

⚠️ This method overrides the DB; remove the line once you update DB license. mailwizz license key install

Create a Validation Cron Job:

* */6 * * * /usr/bin/php /home/youruser/public_html/apps/console/console.php license-verify > /dev/null 2>&1

This runs every 6 hours, ensuring your license status is fresh. Combine it with a log file for debugging: Prerequisites

* */6 * * * /usr/bin/php /home/youruser/public_html/apps/console/console.php license-verify >> /home/youruser/license_log.txt 2>&1

Troubleshooting Common License Errors

1. "Invalid License Key" Error

• Cause: You may have copied extra spaces before or after the key.
• Fix: Re-copy the key from your purchase email ensuring no surrounding whitespace.

2. "Unable to verify license" / Connection Error Server: Ensure you have a server with a

• Cause: Your server cannot connect to the Mailwizz licensing server.
• Fix:
  • Check if your server has internet access.
  • Ensure PHP setting allow_url_fopen is set to On.
  • If using a firewall (like Cloudflare or server-side CSF), ensure the server can make outbound requests to license.mailwizz.com.

3. "License already in use"

• Cause: Mailwizz licenses are generally single-domain licenses. If you used the key on a staging site, you might need to deactivate it there first.
• Fix:
  • Log into your Mailwizz customer account on their official website.
  • Navigate to your licenses section and "Reset" or "Detach" the license from the previous domain, then try entering it on the new domain again.

5. Method 2: Add or Change License Key in an Existing Installation

If you skipped license entry during setup, or need to update your key (e.g., renewal, domain change), follow these steps.