General Graal – Gameplay: How do I send a mass message?
To Send a Private Message to multiple recipients, open the player list (with F7), then select the players you want to send a message to (by holding down control and clicking the names you want), right click and then press Message. To send it to ALL players, open the player list (F7) and click the top name then hold down shift and press end then right click and then press Message. Some players will have mass messages disabled, so they will not recieve your message.