[Dovecot] dovecot lda with sendmail

I'm trying to set up dovecot's deliver program as the lda for sendmail. I seem to need a config file for it '/etc/dovecot-deliver.conf'. Is there any documentation for this configuration file and it's contents?

sendmail will call it under the recipient's uid, and all it has to do is drop the message into the proper maildir as defined in /etc/dovecot.conf and update the indexes.

Mike