Global Text Chat
Access the global text chat in the game by pressing: t. Change between global chat or team chat by using: tab. Anything you type in the global chat will be seen by everyone in the server. Admin's names will show as green highlighted text in the chat.
Some servers use mods to send automated messages in the chat, such as server rules or use plugins to make announcements like death notes, notifications of people joining the server, and even when cargo drops arrive.