When the user disconnects, a message is displayed in the channel window. In the message area, a description is placed. This can either be a custom quit message, or an error quit message as described above. These each describe what occurred. Refer to the sections on these three items below for more information.
Many users customize their quit message to describe why they left.
Custom quit messages cannot exceed 200 characters in length. A read error occurs when a server cannot successfully read from a user's client. Servers gather information from the client by text, setup, and other items. When the server receives an error when reading from a client, it then disconnects the user, resulting in a read error quit message. When the server receives information, it usually responds with information of its own.