This project aims to create an easy to use, extendable and customizable server for a MMORPG called "MU Online".

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C4 C5 - LetterSendRequest (by client)

Is sent when

A player wants to send a letter to another players character.

Causes the following actions on the server side

The letter is sent to the other character, if it exists and the player has the required money.


Index Length Data Type Value Description
0 1 Byte 0xC4 Packet type
1 2 Short   Packet header - length of the packet
3 1 Byte 0xC5 Packet header - packet type identifier
4 4 IntegerLittleEndian   LetterId
8 10 String   Receiver
18 60 String   Title
78 1 Byte   Rotation
79 1 Byte   Animation
82   String   Message