Hello! We are using The Newsletter Plugin on a client site. Everything works great so far and we set up and tested our first newsletter. Comes through great in Gmail and in any modern browser. However, our client uses the Mail client on her Mac to view the newsletter and the image is not showing for her. It shows when she views it in Gmail on a browser, but not in Mac Mail. Here is a screenshot of what she is seeing - a big blank square with a small blue box in the center with a question mark:
We did have her check her Mail viewing preferences and ""Display remote images in e-mail" is checked. Any clue what could be causing the image not to show for her? Is this anything that can be fixed / controlled via settings for The Newsletter Plugin? Thanks in advance for any suggestions!