---
title: "What is High Bounce Rate Auto Protection in Smartlead?"
description: "Learn what is high bounce rate auto protection feature in Smartlead and how it helps improve your campaign's success."
url: https://helpcenter.smartlead.ai/en/articles/274-what-is-high-bounce-rate-auto-protection-in-smartlead
collection: "Creating Email Campaigns"
updated: 2026-10-27
language: en
---

# What is High Bounce Rate Auto Protection in Smartlead?

Learn what is high bounce rate auto protection feature in Smartlead and how it helps improve your campaign's success.

Maintaining a healthy bounce rate is crucial for the success of your campaigns. A high bounce rate can negatively impact your sender reputation, leading to lower email deliverability and reduced engagement. To help marketers maintain optimal email performance, Smartlead offers a feature called High Bounce Rate Auto Protection.

## **Understanding High Bounce Rate Auto Protection**

If enabled, this feature automatically pauses your email campaign when it reaches a predefined bounce rate.

For example, if you have defined the threshold to be 5, Smartlead’s auto protection feature will pause the campaign when the bounce rate hits 5%, allowing you to investigate and resolve any issues before continuing.

## **Why is Bounce Rate Important?**

A bounce rate represents the percentage of emails that fail to be delivered to recipients. There are two types of bounces:

-   **Hard Bounces**: Permanent failures due to invalid email addresses, domain issues, or recipient server rejections.
    
-   **Soft Bounces**: Temporary failures due to recipient inbox issues, server problems, or email size restrictions.
    

A high bounce rate can lead to **blacklisting**, poor email deliverability, and a damaged sender reputation. Auto protection helps mitigate these risks.

## **How to Enable High Bounce Rate Auto Protection in Smartlead**

When you are creating a new campaign, you will get the option to set up campaign settings in the **SETUP** stage. Simply scroll through the options, and you will find the **High Bounce Rate Auto Protection** setting. Enable it and specify a threshold value.

![](https://staticfiles.gleap.io/ghelparticle/VF3cjkxIMP21S03g1SKywWvYeUnoQbfziW7Cw8FhfIIywXgOEaJFcWVnb8IFWim3FrVHDnUctJw.png)

This value determines when your campaign will be paused. For example, if you set it to **3**, the campaign will automatically stop if the bounce rate reaches **3%**. This feature ensures better email deliverability and prevents damage to your sender reputation.

If you don't know how to create a campaign in Smartlead, please visit this [article](https://helpcenter.smartlead.ai/en/articles/34-creating-a-cold-email-campaign.md).

## **Benefits of Using High Bounce Rate Auto Protection**

-   **Protects Sender Reputation**: Prevents excessive bounces that could lead to blacklisting.
    
-   **Improves Deliverability**: Ensures emails reach the intended inboxes.
    
-   **Saves Resources**: Avoids wasting efforts on campaigns that might not be effective due to high bounces.
    
-   **Provides Real-Time Control**: Allows marketers to take corrective actions before a campaign causes damage.