This Plugin allows you, to set a Custom Join Message.You can set the Message ingame by Using /setjoinmessage MESSAGE. This will make a Message, that is safed in plugins/customjoinmessages/config.yml . Its better to go to this file(config.yml) and set a Message by your self. Use the Keyword NAME to get the Player Name. E.g:

(in config.yml)
JoinMessage: Welcome NAME to our Server!

This will create following Message:
Welcome PLAYERNAME oon our Server!