How Email Authentication Builds Subscriber Trust

The Email Marketing Podcast with Fexingo: Newsletters, Open Rates, and Subscriber Growth · Jun 17, 2026 · 8m · transcript

Lucas and Luna dive into the often-overlooked world of email authentication protocols—SPF, DKIM, and DMARC—and how they directly impact deliverability and subscriber trust. Using the example of a mid-size e-commerce brand that saw a 12 percent open-rate boost after implementing DMARC, they explain why authentication isn't just for IT. Lucas shares how major email providers like Gmail and Yahoo now enforce stricter checks starting February 2026, and why brands without proper authentication risk landing in spam. Luna brings in data from a 2025 industry report showing that 23 percent of…