I'm not sure. What options do I have? Is there any functionality currently in place?

That didn't work. Can I generate a list by contacts instead of customers? Though I don't want vendors in that list.

I encountered another problem. Some of my customers have multiple email addresses. I think your method only pulled the main contact email. I want all email addresses.

@Ivy Lopez-Oracle, Thanks for your help. Your instruction was just what I needed.

Thanks for the quick response and insight, Michelle. So best case scenario is to use a separate domain and use it exclusively for email marketing?