---
title: "What is a hard bounce? – Invenitor"
description: "A hard bounce is a permanent delivery failure, usually because the address does not exist. Here is what to do when you get one."
url: https://invenitor.com/glossary/hard-bounce
agents: https://invenitor.com/llms.txt
mcp: https://api.invenitor.com/mcp
---

[Home](https://invenitor.com/)/[Glossary](https://invenitor.com/glossary)/Hard bounce

Glossary

# What is a hard bounce?

A hard bounce is a permanent delivery failure, which usually means the address does not exist or the receiving system will never accept your mail.

By Invenitor team. Updated 2026-11-01.

## What should you do after a hard bounce?

Stop sending to that address. Do not retry it. Look for another route to the person, such as a company contact form or a mutual contact, or [check what else you can try](https://invenitor.com/guides/when-no-email-is-found).

## Why do people bounce after moving on?

Work addresses often close when someone leaves a company. An address that worked last year can bounce today, which is why old lists bounce more.

## Guides on this

- [How to lower your cold email bounce rate](https://invenitor.com/guides/lower-your-email-bounce-rate)

## Related terms

- [Soft bounce](https://invenitor.com/glossary/soft-bounce)
- [Cold email bounce rate](https://invenitor.com/glossary/cold-email-bounce-rate)
- [Data decay](https://invenitor.com/glossary/data-decay)

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