@SYNTAX:cumode@
-Format: <channel> +|-<modes> <nickname>[@<server>] [-pubkey|<passwd>]
-
This command is used to manage the client's modes on the channel.
Most of the modes require that the client which changes some
client's mode must be channel founder or channel operator. The
Set/unset channel operator. Requires that
you are channel operator or channel founder.
+ b <nickname>[@<server>]
+
+ Set/unset channel message blocking. Client
+ may set this mode only to itself. When set
+ the server will not send channel message to
+ to the client. This mode can be used to block
+ unwanted messages if desired.
+
+
See also: CMODE, UMODE