Currently Igloo functionality does not include the ability to have images show within a subscription notification email. As you noted, wherever the image is supposed to appear, there will be a "[Use the button below to view additional content]" placeholder.
Having images included within a notification has been submitted to our Product Team as a Product Idea. I have added your organization to the list of customers who have requested this feature.
Please let me know if you have any questions.
- Join Now