At the end of every day in Pikmin 2, Captain Olimar receives some mail. These short messages provide context to the story and show what the various minor characters are doing while the leaders are exploring.
The mail that appears for each day is taken from a specified set that depends on how many Pokos the player has collected, and is always received in a set order. Once every message in one set has been shown, the final message in the set is repeated until the requirements for the next are met.
It is possible to view past mail entries by pressing / and / , but only the 20 most recent mails are saved.
In the following lists, items with two lines mean that they are different between the GameCube and Wii versions; the top line corresponds to the GameCube original, and the bottom one to New Play Control! Pikmin 2.
Up to 2999 Pokos
After debt is repaid
After Louie is found, before all treasures are collected
After all treasures are collected