I’d like to know this as well.
The plugin looks great and works fine for things like new comment emails etc, but what I really wanted it for was for mass emails or new post emails – which currently send in plain text and look amateurish.
Is there a way to get this plugin to work with the New Post Notification plugin too?
https://wordpress.org/plugins/new-post-notification/
This plugin isn’t meant to be used in mass email sending. Its primary role is to give an HTML template to transactional emails (lost password, notification, etc.).
You should look for a newsletter/email marketing plugin.
I think it would be a great feature to add. It would be very nice to have a single template for the design of both transactional emails and ad-hoc or planned updates to users.
I think the question is at the wrong end. WP Better Emails works with Email Users! Use the Text mode. If you enable a HTML message in Email Users it creates it’s own HTML wrapper… so I guess we need option to fix it on the side of Email Users not WP Better Emails.
I posted a request here:
https://wordpress.org/support/topic/email-users-with-wp-better-emails?replies=1#post-6891985