How to enable maildir in Dovecot deliver with Sendmail local_procmail

Question

There is documentation around on how to make /usr/local/bin/procmail work with delivering to a maildir.

However, it is my understanding that it is also possible to avoid procmail altogether, and have sendmail's local_procmail FEATURE call /usr/local/libexec/dovecot/deliver / dovecot-lda directly, instead of first calling procmail.

In such case, how would dovecot-lda know whether it needs to deliver to mbox or maildir?

http://wiki2.dovecot.org/LDA/Sendmail

FEATURE(`local_procmail', `/usr/local/libexec/dovecot/dovecot-lda',`/usr/local/libexec/dovecot/dovecot-lda -d $u')
MODIFY_MAILER_FLAGS(`LOCAL', `-f')
MAILER(procmail)

Answer 1

This is decided in /etc/dovecot/dovecot.conf from what I read in the manuals. You will need:

mail_location = maildir:~/Maildir
lda_mailbox_autocreate = yes