It would work if it is possible to set up two auto-respond areas. One to getting email messages, and the other to manage leads according to each customer.

An email lead can get an standard auto-responder, so there is no need to piping it to an specific one.

For instance, a new customer e-mails the company asking for product X, the system would auto-reply him with an standard message, then the user (administrator) would read his requests and move him to product X stream, the customer will end receiving information about product X. So administrator would be able to set up different streams, maybe mix them, and to piping e-mails messages once received. This is pretty good when adding leads, one customer maybe interested in product Y so admin can set him to product Y stream.

what do you think?