Where do previewed images from email download to?

[Beerbon]

I'm using the stock email app on a Samsung s5. When emails contain images you can either download them or just preview them right there in the email app. But when you preview it looks like it downloads something, so where would that be stored at?

 

[the tall guy]

It could just be the image loading, which makes it look like it's downloading. Have you checked your download folder to ensure the image hasn't saved?