This license is already registered to another AppMail instance

This license is already registered to another AppMail instance

This article is about the following error message that you get in your AppMail dashboard:

{"errors":{"license_key":"This license is already registered to another AppMail instance"},"message":"General error","status":"error"}

Why do I get this error?

You get this error when AppMail validates your license key, and the license key is already in use on a different AppMail instance.

Why does this happen?

When you install AppMail for the first time, your license key will be bound to your hosting environment and your AppMail instance. If you then move your AppMail instance to a different hosting environment, your license will not match anymore, and this error will be triggered.

How can I fix this?

Luckily, the fix is simple.
Just head out to our Reset License page, enter your license key and hit the Reset License button.
This will reset your license, then you can use it in your current environment, be it in a new install, or just to update your license info from within your application, in Backend > Settings > License Info (add your license key once again and save your changes).

How can I avoid this error in future?

This error can easily be avoided if you reset your license each time when you re-install your AppMail application or when you migrate it to a different hosting environment.

    • Related Articles

    • What license do I need?

      AppMail is offered under two licenses, regular and extended. The regular license allows you to use AppMail for personal purposes, that is, for your website(s), where you don’t have any material win from directly using the application but only use the ...

    • Use 2FA in AppMail

      Two-factor authentication (2FA), sometimes referred to as two-step verification or dual-factor authentication, is a security process in which users provide two different authentication factors to verify themselves. This process is done to better ...

    • Column already exists 1060 Duplicate column name

      Update failure: Column already exists: 1060 Duplicate column name. A typical error would look like: Updating to version 1.3.6.1 failed with: CDbCommand failed to execute the SQL statement: SQLSTATE[42S21]: Column already exists: 1060 Duplicate column ...

    • Guide to follow while creating your AppMail extensions

      The naming convention of the extension folder and extension init file for the extension remains the same, if your extension folder is called amazon-s3 your extension init file must be called AmazonS3Ext.php and must contain the class AmazonS3Ext ...

    • Why do I get the “License error!” error and my app goes offline?

      You get this error for a few reasons, as follows: # - Your license info from your AppMail app, from Backend > Settings > License is outdated. Update it properly. # - Your license info on our servers is outdated. # - You are using AppMail as a SaaS ...