dovecot - Aug 2010 - Filtering virtual mailbox using other virtual mailbox?

Hi All,
  my name is Giovanni and I am new to dovecot.
I have installed version 2.0  the past week and I find it very powerful.
I have started to play with the virtual mailbox plugin.
I was unable to do a virtual mailbox filtering out the contents of  
other mailbox, for instance

I have a virtual/spam mailbox which filter out all the spam thanks to  
spamassassin. This mailbox is virtual, its description is
INBOX
-Trash
-Trash/*
-Junk
  subject SPAM


I'd like to do a simple virtual/ham mbox using this dovecot-virtual

INBOX
-virtual/spam
  to: jj at gioorgi.com

but it seems not working. it does not filter the spam.

It is possible to do such thing, or I am trying to do something not  
possible at all?
Thank you

(\__/)
(='.'=)
(")_(")

Giovanni Giorgi
jj at gioorgi.com

On Sun, 2010-08-29 at 15:28 +0200, Giovanni Giorgi
wrote:
> I have a virtual/spam mailbox which filter out all the spam thanks to  
> spamassassin. This mailbox is virtual, its description is
> INBOX
> -Trash
> -Trash/*
> -Junk
>   subject SPAM
The above only shows messages in INBOX that have "SPAM" in subject.
Did
you want it from all mailboxes? Then you should replace INBOX with *.
Otherwise the -Trash and -Junk lines are just ignored.
> I'd like to do a simple virtual/ham mbox using this dovecot-virtual
> 
> INBOX
> -virtual/spam
>   to: jj at gioorgi.com
"to: jj at gioorgi.com" isn't a valid search query. Do you want
something
like:

INBOX
  TO jj at gioorgi.com

or maybe

INBOX
  NOT SUBJECT SPAM