How to trigger sending of email based on a list passed as a parameter from previous process node

Hi - we're using One Identity Manager version 8.2. Pretty new to this product. I'm trying to get a list of inactive app members and send notifications as needed to their respective managers. I am coming from a process based on the app object. 

Is there a way to trigger sending of email based on a list of email addresses it has to send an email to (one email per one email address on list)?

First from the process orchestration, I'm looking at creating a custom script to return list of inactive employees' managers & their email addresses 

Then pass that list to SendRichMail node to send the custom mail to each of the managers in the list.

Is there a recommendation for the best way to do this ?

I'm also looking into calling another process based on Person object to handle the sending of notification instead and a script will just reiterate to call it by passing the parameters, only as needed. But looking if there's simpler way to do this from the same single process. 

thanks