Bitnami instance in amazon cloud.
I tried this guide BitNami_OSQA#How_to_configure_the_email_settings_of_OSQA.3f actually there is an error in smtp section Email Server: smpt.gmail.com
and this guide http://wiki.osqa.net/display/docs/OSQA+Administrator%27s+Guide#OSQAAdministrator%27sGuide-EmailSettings
and this django email conf http://docs.webfaction.com/software/django/getting-started.html#configuring-django-to-send-email-messages
bnconfog disabled as suggested here wiki.bitnami.com/Applications/BitNami_Review_Board#Automatic_Approach
Tried Google and Yandex settings. User with and without "@gmail.com" with and without ssl.
In both django and standard web interfaces.
I found this error in the /opt/bitnami/apps/osqa/log/django.osqa.log
/opt/bitnami/apps/osqa/forum/utils/mail.py TIME: 2014-10-19 09:24:55,402 MSG: mail.py:create_and_send_mail_messages:122 Email sending has failed: [Errno 101] Network is unreachable
aws security groups wasn't configured properly.
I'm glad to hear that you managed to solve it.