I'd like to make a system where you can send emails with dynamic content. For instance, let's say I regret an email that I just sent and I want to delete that last paragraph out of it.
My first idea is to link (not embed) an image that loads from my server, and since I have control of that server I can change the image. The image would basically be a screenshot of whatever rendered HTML I was looking to send. It would have text, images, etc. but the only thing they receive in their inbox is a single image.
This question identifies the difference between linking and embedding: Images in email: link or embed?
However, this is kind of obnoxious to the receiver because they can't select the text. Is there a way to link text/HTML/anything besides an image?