# Packet 0x81
Clients send Packet 0x81 to the server to send a simple mail to a recipient. The server sends it to clients to deliver the mail.
It seems that the game doesn't clear the entire message buffer before sending a message, so some random data (probably meaningless) ends up in the sent packet. Simple Mail packets can be shortened by the server (to remove excess garbage), and clients will still accept them.
## Dreamcast Packet Format
| Bytes | Meaning |
| --- | --- |
| 0x0000 | Packet Type (0x81) |
| 0x0001 | Flags (0x00) |
| 0x0002-0x0003 | Packet Size (0x0220) |
| 0x0004-0x0007 | Player Tag (0x00010000) |
| 0x0008-0x000B | Guildcard Number of Sender |
| 0x000C-0x001B | Name of Sender |
| 0x001C-0x001F | Guildcard Number of Destination |
| 0x0020-0x00B0 | Message to be sent |
| 0x00B1-0x021F | Unknown (garbage?) |
