The Email Marketer's Guide to Bounce Processing

Knowing why your marketing campaigns bounced, or couldn’t be undelivered, and what to do about it is just as important as maintaining low complaint rates and other factors related to your reputation and ability to reach the inbox.

Processing bounce codes challenges marketers and email administrators since most ISPs and mailbox providers use their own custom bounce codes. It’s not uncommon for marketers to keep re-sending to non-existent email addresses because of this. The result is either an increase blocks for mailing to too many non-existent addresses, but more commonly marketers see these addresses turn into spam traps. When it reaches this point, deliverability problems occur more frequently and are challenging to resolve.

We created our latest guide, The Email Marketer’s Guide to Bounce Processing, to better understand bounce codes and how to process them. This bounce processing guide will teach you:

  • Interpreting the difference between a hard and soft bounce
  • Which bounce codes should be re-tried and which ones should be disabled
  • How to read a bounce code
  • How to troubleshoot bounce messages

By downloading the bounce processing guide, you’ll have a better understanding of bounce processing jargon, and maintain quality lists that will keep you off blacklists and keep your mail delivering to the inbox.

minute read

Popular stories



BriteVerify email verification ensures that an email address actually exists in real-time


The #1 global data quality tool used by thousands of Salesforce admins


Insights and deliverability guidance from the only all-in-one email marketing solution

GridBuddy Cloud

Transform how you interact with your data through the versatility of grids.

Return Path

World-class deliverability applications to optimize email marketing programs

Trust Assessments

A revolutionary new solution for assessing Salesforce data quality


Validity for Email

Increase inbox placement and maximize subscriber reach with clean and actionable data

Validity for Data Management

Simplify data management with solutions that improve data quality and increase CRM adoption

Validity for Sales Productivity

Give your sales team back hours per day with tools designed to increase productivity and mitigate pipeline risks in real-time