Enrich up to 1500 emails per hour with Dropcontact batch requests

The template allows to make Dropcontact batch requests up to 250 requests every 10 minutes (1500/hour). Valuable if high volume email enrichment is expected. Dropcontact will look for email & basic email qualification if firstname, lastname, companyname is provided. +++++++++++++++++++++++++++++++++++++++++ Step 1: Node "Profiles Query" Connect your own source (Airtable, Google Sheets, Supabase,...) the template is using Postgres by default. Note I: Be careful your source is only returning a maximum of 250 items. Note II: The next node uses the next variables, make sure you can map these from your source file: firstname lastname website (companyname would work too) fullname (see note) Note I

Help me set up the n8n workflow "Enrich up to 1500 emails per hour with Dropcontact batch requests" (https://n8n.io/workflows/2272). It uses: HTTP Request, Postgres, Slack, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.