spamassassin MTA pickup event

[mave21]

Hello,

I have plesk 8.2 with spamassassin and mailenable.
in order to get emails marked from spamassassin into
the Mailenable junk folder, I need to configure spamassassin
in the Mailenable MTA pickup event.
Can anyone tell me how to do it?
I have tried with SAplugin, but to configure it, I need to
enter a valid sapmassassin executable file path into
spamassassin.ini file. I do not find that exe file in Plesk.
Do you know why?
Thanks a lot for you reply.
Bye, Marco.