ansible-role-mailserver/templates/dovecot/conf.d/91-stats.conf

protocol imap {
	mail_plugins = $mail_plugins imap_old_stats
}
plugin {
	old_stats_refresh = 30 secs
}
service old-stats {
	fifo_listener old-stats-mail {
		user = vmail
		mode = 0600
	}
	inet_listener {
		address = 127.0.0.1
		port = 24242
	}
}
service stats {
  unix_listener stats-reader {
    group = vmail
    mode = 0666
  }
  unix_listener stats-writer {
    group = vmail
    mode = 0666
  }
}