Over saturation can have several negative impacts:
1. Decreased Engagement Rates: As subscribers receive more emails than they can handle, open rates and click-through rates may drop. 2. Increased Unsubscribe Rates: Overwhelmed subscribers are more likely to opt out of receiving further communications. 3. Damage to Sender Reputation: High volumes of unopened emails or emails marked as spam can harm your sender reputation, affecting deliverability. 4. Diminished Brand Perception: Being seen as intrusive or irrelevant can negatively affect how your brand is perceived.