To measure waste, you should monitor key performance metrics such as:
Open Rates: A low open rate may indicate that your subject lines are not compelling or your emails are not reaching the inbox. Click-Through Rates (CTR): A low CTR can suggest that your email content is not engaging or relevant to your audience. Conversion Rates: Track how many recipients take the desired action, such as making a purchase or signing up for a webinar. Unsubscribe Rates: A high unsubscribe rate can indicate that your emails are not meeting subscriber expectations. Bounce Rates: Monitor hard and soft bounces to ensure your email list is clean and up-to-date.