Triggering to a list

I have this need: once a form is submitted by a user I need to send an email, like an alert, to a segment of people. How can I do this? I know forms can manage the alert but it is only for specific users or email addresses and not lists.

Is there a smart way to do that?

I have this need: once a form is submitted by a user I need to send an email, like an alert, to a segment of people. How can I do this? I know forms can manage the alert but it is only for specific users or email addresses and not lists.
Is there a smart way to do that?