Mailbag integrates with both MailChimp and Campaign Monitor API’s to provide you with email subscription forms that can be placed into your posts or pages. Simply add your API key, choose a list to subscribe users to in the Mailbag settings, and add the shortcode anywhere you’d like.
We’ve extended Mailbag’s usability by including a Theme Customizer panel, which displays upon the plugin’s activation. You may modify the title & paragraph texts, which will automatically output to your single post view, along with the subscribe field. Also, don’t forget to then select your email service (MailChimp or Campaign Monitor) from the select field below.