# Location for users' mailboxes.
mail_location = maildir:/var/mail/vhosts/%d/%n

[...]

# System user and group used to access mails.
mail_uid = vmail
mail_gid = vmail

# Group to enable temporarily for privileged operations.
mail_privileged_group = vmail

[...]

# Space separated list of plugins to load for all services. Plugins specific to
# IMAP, LDA, etc. are added to this list in their own .conf files.
mail_plugins = $mail_plugins antispam quota

[...]

# By default LIST command returns all entries in maildir beginning with a dot.
# Enabling this option makes Dovecot return only entries which are directories.
maildir_stat_dirs = yes