I’ve been using Openfire since it was Jive Messenger service and I love it. However, I have never understood what the SMTP mail support in the server is used for. Someone shine the light upon me please.
Like you’ve understood, it is indeed an SMTP support in Openfire. So far, nothing in the server make use of SMTP. However, the support allows a single and preset SMTP configuration ready to be used via EmailService class. You can use this class to send emails from your plugins. Plugins such as Registration and ContentFilter uses EmailService.sendMessage() to send email notifications.