The non-deliverables and bounce report shows the breakdown of errors by what?

The non-deliverables and bounce report is focused on the analysis of email sending performance, particularly regarding issues that prevent emails from reaching recipients. The breakdown of errors in such reports is primarily organized by email domain. This means that it allows users to see which specific email domains are causing deliverability issues, enabling marketers to identify patterns or problems related to certain providers (like Gmail or Yahoo), domains, or even specific organizations.

Understanding the breakdown by email domain is crucial for optimizing email deliverability strategies. It provides insights that help businesses take corrective measures, such as adjusting sender practices or improving list hygiene, specifically targeting the domains that experience higher bounce rates. This focus on the domain level makes it possible to enhance the overall effectiveness of email campaigns.

Other options, such as email client type or recipient age group, are not typically used to categorize bounce reasons, making them less relevant in this context. Similarly, while campaign type can influence deliverability in broader terms, it does not provide the granular insight that email domain analysis offers when diagnosing non-deliverables and bounces.