Develop an intranet messaging system. On the LAN, the server should have different folders for the users of the LAN. Any user should be able to log on to the server and check the mailbox for received...

Develop an intranet messaging system. On the LAN, the server should have different folders for the users of the LAN. Any user should be able to log on to the server and check the mailbox for received messages and also send messages to others. Effectively, you need to implement a mailing system similar to Hotmail or Yahoo!