---
title: "Email Bounces | Sales Glossary"
description: "Failed email deliveries. Hard bounces permanent, soft bounces temporary. Learn key concepts, industry benchmarks, and best practices."
canonical: "https://firstsales.io/sales/glossary/email-bounces/"
---

[Home](/)/[Glossary](/sales/glossary/)/Email Bounces

E, Sales Glossary

# Email Bounces

Failed email deliveries. Hard bounces permanent, soft bounces temporary.

[Back to glossary](/sales/glossary/)

## What are Email Bounces?

An email bounce occurs when a sent message cannot be delivered to the recipient's inbox and is returned to the sender. Bounces are categorized as either hard (permanent failure) or soft (temporary issue).

**Bounce Types:**

| Type        | Meaning                             | Action Required                |
| ----------- | ----------------------------------- | ------------------------------ |
| Hard Bounce | Permanent failure (invalid address) | Remove immediately             |
| Soft Bounce | Temporary failure (mailbox full)    | Retry, then remove if persists |

**Common Bounce Causes:**  
* Hard: Invalid email, non-existent domain, blocked sender
* Soft: Mailbox full, server down, message too large, recipient offline

## Why Email Bounces Matter

Every bounce damages your sender reputation. High bounce rates trigger spam filters and can get your domain blacklisted.

**Reputation Impact:**  
* **Each hard bounce** hurts domain reputation
* **Bounce rate above 2%** signals list quality problems
* **Bounce rate above 5%** causes serious deliverability issues
* **Bounce rate above 10%** risks domain blacklisting
**The Death Spiral**: Bounces → lower reputation → more filtering → lower engagement → worse reputation → more bounces.

**2024 Benchmark**: Hard bounce rate is 0.44%, soft bounce rate is 0.73%-both declining due to better email hygiene practices.

## Benchmarks

| Bounce Type  | 2024 Average | Previous | Trend     |
| ------------ | ------------ | -------- | --------- |
| Hard Bounce  | 0.44%        | 0.82%    | Improving |
| Soft Bounce  | 0.73%        | 0.84%    | Improving |
| Total Bounce | 1.98%        | \~2.5%   | Improving |

**Performance Thresholds:**  
* **Excellent**: Below 1%
* **Good**: 1-2%
* **Warning**: 2-5%
* **Critical**: Above 5%
**Regional Data**: Europe leads with lowest bounce rates, while certain industries see higher rates due to data quality practices.

## Best Practices

1. **Remove Hard Bounces Immediately**: Never re-email addresses that hard bounced
2. **Validate Before Sending**: Use email verification on new lists
3. **Monitor Soft Bounces**: Remove addresses that soft bounce repeatedly
4. **Use Double Opt-in**: Confirms email addresses at signup
5. **Clean Lists Regularly**: Quarterly validation prevents accumulation
6. **Track by Source**: Identify which lead sources produce bounces
7. **Implement Bounce Management**: Automated removal rules in ESP
8. **Test Email Infrastructure**: Ensure your setup isn't causing bounces

## Common Mistakes

* Re-emailing addresses that previously bounced
* Not removing hard bounces from CRM immediately
* Ignoring soft bounces until they become chronic problems
* Buying email lists (high bounce rates guaranteed)
* Not validating emails before importing to CRM
* Sending to old lists without re-verification
* Failing to track bounce rate by source/campaign
* Not implementing automated bounce handling

## Key Takeaways

* Hard bounces are permanent failures; soft bounces are temporary
* Remove hard bounces immediately-never retry
* 2024 benchmarks: 0.44% hard bounce, 0.73% soft bounce
* Keep total bounce rate below 2% for healthy deliverability
* Bounce rates above 5% cause serious reputation damage
* Validate email addresses before adding to lists
* Regular list cleaning prevents bounce accumulation
* Monitor bounce rate by source to identify data quality issues

---

**Sources:**  
* [International Email Benchmark 2024 - GDMA](https://globaldma.com/association/international-email-benchmark-2024/)
* [Email Bounce Rate: Benchmarks & Deliverability Impact - CleverTap](https://clevertap.com/blog/email-bounce-rate/)

## Related Terms

[EEconomic BuyerPerson controlling budget and making final purchase decision.View term](/sales/glossary/economic-buyer/)[EElevator Pitch30-second summary of value proposition. Clear, compelling, memorable.View term](/sales/glossary/elevator-pitch/)[EEmail AuthenticationSPF, DKIM, DMARC setup proving you're legitimate sender. Non-negotiable.View term](/sales/glossary/email-authentication/)[EEmail AutomationSoftware sending personalized emails based on rules and triggers.View term](/sales/glossary/email-automation/)

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