catching some spam with warn_if_reject and reject_unknown_*

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catching some spam with warn_if_reject and reje...
\ sftf (6 May 2008)
. \ Victor Duchovni (6 May 2008)
. . \ sftf (6 May 2008)
. . . \ Victor Duchovni (6 May 2008)

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Subject:	catching some spam with warn_if_reject and reject_unknown_*
Group:	Postfix-users
From:	sftf
Date:	6 May 2008

Hi.
I would like temporary to catch some spam, rejected by reject_unknown_*
smtpd_client_restrictions into dedicated mailbox (for DSPAM).
But I don't figure how to distinguish such messages.
Somthing like this:
------------------------------------------------------------
inet_smtpd_client_restrictions_class=
warn_if_reject,
reject_unknown_reverse_client_hostname
...
somehow redirect "warn_if_rejected" messages to "rejected" mailbox
------------------------------------------------------------
Any help will be appreciated!