There are several signs of over allocation in email marketing:
High Unsubscribe Rates: A sudden increase in unsubscribe rates can indicate that subscribers are overwhelmed by the number of emails they're receiving. Low Engagement Metrics: If open rates, click-through rates, and other engagement metrics are consistently low, it may be a sign of over allocation. Technical Issues: Frequent technical issues, such as email delivery failures or server overloads, can be a sign that your resources are over-allocated.