When you turn on your game, on the main menu there's the option to enter wonder mail codes.
wonder mail
tell me
wonder mail s
there is a wonder mail code for it
no
Yes. You can exchange Wonder Mail to any version of Mystery Dungeon: Explorers of... But you can't trade Wonder Mail S to Time or Darkness.
You need a wonder mail code
http://www.cheatsguru.com/nds/pokemon_mystery_dungeon_explorers_of_time/cheats/ or this one http://www.answerblip.com/are-there-any-wonder-mail-s-codes-for-pokemon-mystery-dungeon-explorers-of-sky
wonder mail
no
you dont
There is a site posted on Google for Wonder Mail S Generators of Explorers Of Sky.