How to do Greylisting after SpamAssassin

[Oswald]

I would like to apply Greylisting only to those E-Mails, that SpamAssassin considers spam. Is there some way to configure this in Plesk? I have implemented a custom mail handler to do this, but it stopped working after an upgrade to Plesk 11 (see Environment Variable TCPREMOTEIP not set).

 

[abdi]

I doubt if there is such a feature with Plesk.

 

[Oswald]

I have rewritten my custom mail handler to work with my current version of Plesk Panel, so I am no longer in need for a solution provided by Plesk Panel.