Why can't I watch pornography through e-mail?

[AC Question]

why can't I watch pornography through e-mail? My last phone (ZTE) would play them with no problem.

I recieve porn e-mails daily and my old phone played them as soon as they started. How can i get my Samsung Galaxy Core Prime to recieve porn via e-mail? I can still view porn on porn hub with no problems this problemonly occurs with e-mail.