Is there a workaround to have forwarding and Vacation reply on at the same time?

[John Dempsey]

Hi all:
I asked this before, and just got the reply that you could only have one 
or the other.  I have a user who wants to
forward his email to Yahoo, while on vacation and have the vacation 
reply on as well.
As a sales rep with a new manager, he needs to stay "in the loop" while 
on vacation, but doesnt want to bring
his laptop with him to access the mail server directly.

I also have another user who wants to be able to forward msgs to Yahoo 
and his blackberry at the same time also.

I know its not possible through the GUI, but is there a way I can do it 
as administrator?

It can't be that difficult can it?

Thanks
JD