Content?

        Is there a way to check for specific variable in the body of a 
designated mail message? The effect I'm looking for is something along
the lines of: 

        mail from person x goes into mailbox y
        however, if the body of the message, has variables c and q, the mail
also goes into mailbox z

        My only solution thus far has been to try to send the mail message 
through a script to match variables, but I've been yet to be able to make 
it work. Anyone been able to make something like this work already?

        Sarah