This library (check-if-email-exists) has a dual license, a commercial one suitable for closed-source commercial projects and an AGPL license that can be used in open-source software.
Depending on your needs, you must choose one of them and follow its policies. A detail of the policies and agreements for each license type are available in the LICENSE.COMMERCIAL and LICENSE.AGPL files.
In brief, purchasing a license is mandatory as soon as you develop activities distributing the check-if-email-exists software inside your product or deploying it on a network without disclosing the source code of your own applications under the AGPL license. These activities include:
- offering services as an application service provider or over-network application programming interface (API),
- creating/manipulating documents for users in a web/server/cloud application,
- shipping
check-if-email-existswith a closed source product.
Please visit Reacher's dedicated page to purchase a commercial license or contact Reacher support at support@reacher.email for more info.