Hey! Read this first. You can also add a subscription form with:
An iframe is a good solution if you need to add the subscription form on another website, or another site within your WordPress Multisite, or in another plugin.
Head over to menu item MailPoet Settings > Subscription Form > Edit the form you want to use.
At the bottom, you’ll find the form in different versions:
Note: make sure you save your widget before copying the iframe’s code!
Styling the iframe
You can add your own iframe.css in the uploads/wysija/css folder.