authentication not enabled ??

============ Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 14.04 TLS
- Related log if you're reporting an issue:
====
Hello,

I installed iRedMail and working properly when using webmail. But when I try to send mail using telnet on
localhost: mails are not delivered (I did not use auth login) when try using auth login, given error:authentication not enabled)
non-local: 503 5.5.1 Error: authentication not enabled

Is there any changes I need to do on main.cf and master.cf to enable smtp authentication?

Thank you