you give the girl in mauville the harbour mail and she gives you a coin case, but i dont know what to do with the rest of the mail, sorry. Good luck gaming!
You can buy Harbor mail at Slateport City
You go to Slateport city and go to Pokemon market. Here you can buy Harbor mail.
Harbor mail
You can write letters to your friends. Just put a message on the mail. Give the mail to one of your pokemon, and trade with a friend.
From the PokeMart in Slateport
You can buy Harbor mail at Slateport City
You go to Slateport city and go to Pokemon market. Here you can buy Harbor mail.
Harbor mail
The mail doing nothing, you write a letter you get nothing back.
You can write letters to your friends. Just put a message on the mail. Give the mail to one of your pokemon, and trade with a friend.
slateport city Pokemon mart
From the PokeMart in Slateport
She is in mauville city in a house right next to the pokemart, give her harbor mail to get a coin case.
You can buy mail at the Celadon Dept Store and if memory serves on the 5th Floor.
in the city after you get of the boat the second time
Slateport city Mart
I/you/we/they mail. He/she/it mails.