From what I know, you cannot send them in the mail. You have to give them to another player as a gift. If the player is on your Friends list, you can click on the small hand-holding-present icon to give them a gift. If the player is not on your Friends list, you must visit … Read more

The basic rule is 'Two acres for one horse, and one acre per horse after that'. My horse is on 2 acres and is very happy and healthy.