Ubuntu Postfix Open LDAP integration - no SASL authentication mechanisms

Ive followed all the steps in https://help.ubuntu.com/community/Postfix/DovecotLDAP but I am getting a > localhost postfix/smtpd: fatal: no SASL authentication > mechanisms in my **/var/log/mail.err** Is there a way to find out more specific root cause? Note: I have verified saslauthd is running properly using **testsaslauthd**. SASLAuthd is running fine. I'm struggling in trying to get deeper logs and exact cause on the postfix-sasl side, since I assume the issue will be there.