I'm having trouble limiting the number of my hotmail emails that are being loaded. with the 4 there was an option in setting to limit to the 50 most recent messages. I don't see this in the 5C

I was recently upgraded from an iphone 4 to a 5C and I'm having trouble limiting the number of my emails that are being loaded.

the iphone 4 there was an option in settings to limit to the 50 most recent messages. I don't see this in the 5C and my hotmail account keeps loading hundreds old messages that have already been opened. It list these messages as unread and makes it difficult to monitor if I actually have a new "unread" message.

Thanks