Apple’s Mail Privacy Protection (MPP) will likely only be the first mailbox provider to flood marketers’ systems with fake opens, obscuring real ones. Welcome to the Age of Email Open Depreciation. Although far from perfect, opens were email marketers’ most frequent signal of engagement, generally clocking in at about eight times the number of clicks. As such, marketers relied on the metric to drive a range of activities. For example, you can use email opens to define active subscribers for targeting and inactive subscribers for suppression.
While email clicks can fill the void left by opens when it comes to send time optimization and subject line optimization, email audience selection requires a much broader approach. Going forward, the best way for you to define a subscriber as active or inactive will entail looking at both their activities as a subscriber and their activities as a customer across other channels.
To do that successfully will require brands to look at the right customer activities and use appropriate lookback windows for both existing subscribers and new ones. We provide an overview of these issues, including some helpful visuals, in this on-demand webinar and also discuss each of those issues in more detail in this post.