For security reasons, this is a mandatory final step. After a successful installation, you must delete the install directory from your server to prevent anyone from re-running the installer and potentially corrupting your setup.
Before attempting to install your MailWizz license key, ensure you have the following ready:
Installing a MailWizz license key is a straightforward process that serves as your gateway to a powerful, self-hosted email marketing platform. By carefully following the steps outlined in this guide—from meeting server requirements and obtaining your key to methodically running the installation wizard—you can successfully set up your system.
Depending on your current setup status, there are two ways to enter your key:
A VPS or dedicated server running Apache/Nginx with PHP and MySQL. Domain/Subdomain: A domain (e.g., ://yourdomain.com ).
Click to allow the MailWizz activation server to validate your key. Step 5: Configure Database and Admin Settings
Technically, yes, but it is generally not recommended for anything beyond very low-volume or testing purposes. MailWizz is resource-intensive, especially when sending large email campaigns. Shared hosting environments often have strict limitations on PHP memory, execution time, and server resources. For reliable production use, a VPS or a dedicated server is strongly advised.
MailWizz must communicate with mailwizz.com to validate the key. If your server firewall (CSF/iptables) blocks outbound connections, validation will fail. Ask your hosting provider to whitelist outbound HTTP/HTTPS requests to the MailWizz licensing servers. Domain Migration Issues