If you offer Sign in with Apple, part of your list may be private relay addresses. Apple only forwards authenticated mail from sources you have registered. Here is how to check your setup and protect those subscribers.
Your email can be delivered successfully, reach the inbox and still never get meaningful attention. Here is what happens between delivery and human attention — from inbox filtering and AI summaries to sender reputation, engagement history and relevance.
Email click rates are falling across 2026 — but conversions often hold steady. Discover why AI inboxes, privacy changes and more intentional clicks are reshaping CTR, and which metrics matter more.