root@tessa:/etc/dovecot# dovecot -n
# 2.0.19: /etc/dovecot/dovecot.conf
doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:44: protocol { ssl_listen } has been replaced by service { inet_listener { address } }
# OS: Linux 3.2.0-29-generic-pae i686 Ubuntu 12.04.1 LTS ext3
disable_plaintext_auth = no
first_valid_gid = 5000
first_valid_uid = 5000
listen = *
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_access_groups = vmail
mail_location = maildir:/mnt/raid/www_root/mail/%d/%n
passdb {
  args = /etc/dovecot/dovecot-mysql.conf
}
protocols = imap
service imap-login {
  inet_listener imaps {
    address = *
  }
}
service pop3-login {
  inet_listener pop3s {
    address = *
  }
}
userdb {
  args = /etc/dovecot/dovecot-mysql.conf
}
doveconf: Error: ssl enabled, but ssl_cert not set
doveconf: Error: passdb is missing driver
protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
}
doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf: ssl enabled, but ssl_cert not set