How to Combine DNS Records for Multiple Domains Efficiently

Hi, can I please have some help? I want to get information about MX records published by a table of domains. In order to do this, I want to combine all of the DNS records for a given domain into a single string in lower case, then run a function on that. I'm just having a bit of trouble with the setup of the DNS records since some domains have multiple and they may not be in the perfect order to just run a function on the first one. https://app.clay.com/workspaces/154918/workbooks/wb_3dz7XjW4G8vh/tables/t_b9g2BUczSBCm/views/gv_ZQfcSAGNEKoG The enrichments in question are "HTTP API", "DNS Records", and "ESP Type"