Richard Illingworth

Richard Illingworth is the founder of Premium Inboxes, a company focused on helping cold-email agencies and B2B outreach teams build email infrastructure that actually lands in inboxes. With years of experience working with 1,000+ businesses, Richard has developed proven systems for domain setup, authentication (SPF, DKIM, DMARC), warm-ups, list verification, follow-ups, and deliverability monitoring. He regularly shares insights on scaling cold email safely, like how to send 1M+ cold emails/month by maintaining inbox health and rotating domains carefully.