[Exim] Copy of outgoing messages to other mail

Hello all,
my setup is
Linux Server with Exim on it who accepts mail for local users and relaying
mail from local network
question is how can i make copy of messages that one user from local network
sends to anyone to other email account
example all mail that user boss@domain sends to be copyed to sec@domain
filters do not help as describet in FAQ

Best regards, George Chavdarov
System administratir, www.emax.ru