When you’re buying sending domains at volume, registrar pricing compounds fast. Porkbun is consistently the lowest-cost option with a clean UI and proper DNS management. We register all client sending domains here.

What we use it for

• Bulk domain registration for sending infrastructure (20–100+ domains per client)
• Managing DNS records for DKIM, SPF, DMARC setup
• Forwarding sending domains to the main domain for brand consistency