This plugin can be used to add an optin checkbox to receive newsletters, using Laposta newsletter software (https://laposta.nl).
Laposta is a Dutch emailmarketing solution. Use this plugin to add an optin checkbox to your checkout,
so your customers can subscribe to your newsletter.
Unzip the file in the plugins directory, and activate the plugin in the
Plugins screen. Then go to the Settings to setup the connection to Laposta.