Ensuring your emails reach the inbox involves more than traditional best practices. While factors like IP reputation, message content, and authentication tools are crucial, the emerging key player is contact engagement. Email service providers now consider how actively your contacts interact with your emails, influencing inbox placement. ISPs like Gmail categorize emails based on user engagement, while Yahoo incorporates feedback loops allowing users to mark emails as spam. Spamcop introduces traps to catch non-engaged databases. To navigate this landscape, leverage engagement reporting tools from an Email Service Provider, regularly clean your lists, send relevant content, encourage Gmail contacts to move emails to the primary tab, and optimize emails for mobile readers. Staying ahead in the dynamic world of technology may require adjustments to your email strategy to ensure meaningful engagement.