So, I followed the instructions that were supplied with the custom post type "hack" by Renaut, and I do see a sliver of hope because my custom post type shows up in the subscriptions.
Now, the way we handle Newsletters is that we create a new newsletter, save it, then go back to the posts we want to add and select the newsletter in that mailpress box that shows up on the side. Works well.
How do we get to do this with custom post types? We have a few, but I just started with one and I do not get this mailpress-add-to-newsletter-box like I do on regular posts.
I have just added the cpt, no custom taxonomies. Is this to blame?