Measuring intrusiveness involves analyzing various metrics and feedback from your audience, such as:
Open rates: A decline in open rates may indicate that recipients find your emails less interesting or relevant. Click-through rates: Low click-through rates suggest that the content is not engaging or valuable enough. Unsubscribe rates: High unsubscribe rates are a clear sign that recipients find your emails intrusive. Spam complaints: An increase in spam complaints indicates that recipients view your emails as unwanted.