I'm not an expert on this but I'm not sure exactly what you mean by "when you open the mail all the photos appear, you don’t have to open up an individual file etc.".
Are the pictures in the email itself? Or are they in an attachment?
If it's an attachment it's normal to be able to see them below the email without opening the attachment, but by opening the attachment you should then have the usual option to Save as, etc.
Beyond that I leave you in the hands of people here who will know more.