[sentinix-list] ACID email alert configuration

Hello all, 
 In SnortCenter/ACID you can select certain alerts and manually email them. From a default standpoint this wont work because "there is no email address specified" (<<error message). I've been studying the docs for ACID and Ive found the following:
~~~~~~~~~~~~~~~~
/* Email Alert action
 *
 * - action_email_from : email address to use in the FROM field of the mail message
 * - action_email_subject : subject to use for the mail message
 * - action_email_msg : additional text to include in the body of the mail message
 * - action_email_mode : specifies how the alert information should be enclosed
 *     0 : alerts should be in the body of the message
 *     1 : alerts should be enclosed in an attachment
 */
$action_email_from = "ACID Alert <acid>";
$action_email_subject = "ACID Incident Report";
$action_email_msg = "";
$action_email_mode = 0;

~~~~~~~~~~~~~~~~

 However, I dont see anywhere to put in an address to send mail TO... and I assume I would need to set up Postfix to be able to send it or is there an MTA already installed somewhere?
Ive been referencing this:
http://acidlab.sourceforge.net/acid_params.html

 Does anyone know offhand which where you specify the email addresses in snortcenter/acid?

Thanks,
Michael