I just got this one.
This is how all e-mail is from businesses and orgs is these days. All text converted into images and remotely loaded. Unless one drops all privacy, the e-mail is blank. Text in images also puts those with vision difficulties at a disadvantage. Archiving is next to impossible.
Imagine just putting the text into the body of the e-mail, maybe even as a backup.
Attached image shows meaningless blank mobile e-mail with only “unsubscribe,” “view in browser,” and “load images”