How to set up my email on my galaxy s111 +

iphone 4s white 32g in box with all wires
hi i am selling my iphone 4s white 32g because i am trying to save up for the iphone 5, my iphone is in mint condition and it comes with the charger and headphones in the box. i can only send through post (first class), once purchased i can give the tracking number straight away.