[Exim] Exim Handle Non-User Question

    I am setting up exim on a few servers here, and I have ran into
    something, I can not seem to figure out, so I figured I would send
    the exim mailing list an email.

    I am running Exim 4.20 With MySQL Support on FreeBSD. It runs just
    peachy, and is nice and stable, but I want to add in support to
    have any incoming mail that would normally get a "550 unknown
    user" error, to instead pipe out to a perl script that I am
    going to have handle it.

    Thanks in advance on how todo this. I found many documents via
    google and exim, but they are all for 3.20 and lower, nothing
    matched up for 4.XX. Thanks again.