Hi,
Perhaps I could have worded my reply better, I realise which product you are talking about.
When I say i'm confused, I do not understand what you are trying to achieve/configure.
I provided a link to the wiki explanation of DSN/NDR/Bounces hoping you'd be able to clarify what you meant.
Anyway, Delivery Status Notifications (DSN - hopefully you mean delivery status notifications) can be generated for more than one reason, again that's why i supplied the wiki links in my response.
If you mean you want to stop invalid recipient mail generating NDRs, enable directory harvest attack (DHA) protection under the Invalid Recipients setting.
If you mean, "will a delivery receipt be sent by the SMS-SMTP mta?"- yes this will be generated if requested. No configuration steps.
Otherwise, you'll have to be more specific as to what you mean.
--ian