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Hard Bounces
from Email Marketing
Metrics type
Units of measure
Less - better
Check frequency
The number of emails that weren’t delivered to recipients’ inboxes.

A hard bounce indicates a permanent reason an email cannot be delivered. In most cases, bounced email addresses are cleaned from your audience automatically and immediately. Cleaned addresses will be excluded from all future campaign sends. Here are some common reasons an email may hard bounce.

- Recipient email address doesn't exist.
- Recipient email server has completely blocked delivery.
Why it is important
Monitoring this metric is crucial for maintaining list hygiene and sender reputation. Addressing hard bounces promptly ensures a clean and responsive subscriber base.

This metric guides marketers in automating list cleaning processes, enhancing deliverability, and optimizing overall email campaign performance.
Number of Hard Bounces
Calculation example
If out of 1,000 emails, 20 were hard bounces, the Hard Bounces would be 20
Affected metrics
Domain Reputation
Total Subscribers
Affecting metrics
Connecting metrics

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Suggested slices for dashboards
by Bounce Reason
by Email Content Category
by Sender Reputation
by Geographical Location
by Device or Email Client
The revenue impact pathway
Available in JetMetrics Lite only
Questions to be Answered
1. How do hard bounces impact the overall health of an email subscriber list, and what measures can be taken to minimize them?
2. What are the common reasons for emails to hard bounce, and how can these issues be addressed proactively?
3. How does the process of cleaning bounced email addresses contribute to maintaining list hygiene?
4. Are there specific trends or patterns in hard bounces that can help identify potential issues with email content or delivery?
5. How does the handling of hard bounces align with best practices for email deliverability and sender reputation?
6. Can the analysis of hard bounces provide insights into the overall quality of the email subscriber acquisition process?
7. What role does the distinction between hard and soft bounces play in optimizing email list management strategies?
Possible causes of worsening
Tactics to improve this metric
Explore in JetMetrics Lite or Ask professionals in the Community
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