This widget allows the user to capture Paloma newsletter subscriptions from visitors and send them to an address list in their account.
After you have downloaded and installed the plugin files, you must supply the plugin with a valid customer ID and Hash. To receive this information, contact firstname.lastname@example.org and ask for the ID and Hash for this WordPress plugin.
When you have your ID and Hash, go to the Settings menu in WordPress and select Postman Widget. Type the ID and Hash into the appropriate fields and press the Save Changes button, then examine the message below the line. If it says that "You have address lists", the ID and Hash are correct and you may use the plugin. However, if it says that "The ID and Hash are incorrect", then you should contact email@example.com again and ask for help with the issue.
Once you have saved the correct ID and Hash in the settings, the widget is ready to use on your WordPress site. Go to the Appearance menu, select Widgets, and then drag the Postman Widget from "Available Widgets" to the place you want the widget to be on your site.