[Dovecot] Getting started with sieve and conversion from procmail

[Alex]

Hi,

>> I just don't understand how to invoke procmail from deliver.
>
> The idea was to invoke deliver from procmail. I still do this myself
> since I haven't bothered changing my procmail scripts to Sieve:
>
> DELIVER=/usr/local/libexec/dovecot/deliver
>
> :0
> * ^List-Id.*dovecot.dovecot.org
> | $DELIVER -m dovecot
>
> :0
> | $DELIVER

How do I tell dovecot to use procmail so that it may invoke deliver?

Thanks again,
Alex