World of Warcraft chat messages will never be sent out.

The text read aloud is displayed in the lower left corner. You put the mouse on that area. If you put the mouse in the right place, two tabs will appear: battle record and channel (I forget this name, it is the content of usual speech). Right-click the title and select Settings. A dialog box will pop up, where you can select something similar to a channel. After you go in, see if your team channel has been ticked off. If you don't check it, it means that others can see what you say, but you have blocked everything on the team channel here. You check OK and it's solved.

There is also that the national service is now limited to brushing the screen.