Configuring Outgoing Email

I am using 9.0 version of Livecycle. I ahve used the following help link to configure outgoing email settings.

http://help.adobe.com/en_US/livecycle/9.0/adminHelp/admin.htm?content= 000340.html

The email funtionality still does not work. Are there any more settings required at the server end for setting outgoing email?

Thanks.