The key you entered may be mistyped, copied with extra spaces, or you may have accidentally used a purchase code from a different product. Older Envato purchase codes are sometimes formatted differently.
MailWizz does not offer a traditional free trial. However, because the source code is not encoded, you can install it on a test server and use the reset process to move the license later — provided you own a valid license. No “trial” license is offered for zero cost.
During installation, you enter the license key in the setup wizard. MailWizz sends an HTTPS request to the official licensing server ( licensing.mailwizz.com ) to verify:
Effective license management prevents conflicts and ensures uninterrupted operation. mailwizz license key work
Understanding How MailWizz License Keys Work: A Complete Guide
Email protocols and PHP versions change constantly. Without a valid license key, you cannot download security patches or new features, leaving your application obsolete and vulnerable. How to Find Your MailWizz Purchase Code
1. MailWizz sends a POST request to: https://www.mailwizz.com/api/license/validate The key you entered may be mistyped, copied
By default, a single regular license key is valid for:
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During installation, you will see this screen: However, because the source code is not encoded,
I can provide step-by-step troubleshooting instructions tailored to your specific setup. Share public link
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Your license key was previously activated on a different hosting environment (different IP, domain, or server). This error appears when MailWizz validates your license and detects that the key is already in use elsewhere.
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