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Analyze email delivery

Last updated: September 3, 2025

Available with any of the following subscriptions, except where noted:

On the Delivery tab of the marketing email tool, you can analyze delivery and performance trends over time detailed by mailbox provider. By tracking delivery performance over time, you can improve email performance, protect sender reputation, and ensure messages reach recipients.

  1. In your HubSpot account, navigate to Marketing > Email.
  2. On the marketing email index page, click the Delivery tab.
  3. Review the following reports: 
    • Delivery overview: delivery, hard & soft bounce, spam report, and unsubscribe rates for the last specified time period. 
    • Performance trend: graph of delivery and engagement rate changes over time.
    • Performance metrics: chart of delivery and engagement metrics for each month, along with how performance compares with the previous month. 
    • Hard bounce reasons: numbr of recipients who hard bounced in the specified time period. Learn more about hard bounces
    • Soft bounce reasons: number of recipients who soft bounced in the specified time period. Learn more about soft bounces
    • Delivery by mailbox provider: graph of delivery rates, broken down by email provider. 
    • Performance by mailbox provider: chart of delivery and engagement metrics for each email provider.
  4. To change the time period of a report or add other filters:
    • Hover over the report, then click the filter filter icon in the top right. 
    • To change the report's date range, click the dropdown menu in the top left, then select a new date range. For rolling date ranges, select Rolling date range, then click the second dropdown menu and select a range
    • To add other filters, click add More, then select a filter. Click the filter's dropdown menu and select the values you want to filter for. 
    • To return the report to its default state, click Reset filters
    • If AI-generated summaries are available for a report, click Show summary in the Report summary section to generate a summary. You must have the following settings turned on in AI settings for this option to appear: 
      • Give users access to generative AI tools and features
      • Give users access to Breeze Assistant
    • When you're finished editing the report, click Save report.
  1. To learn more about the metrics measured in a report, hover over the info info icon. If there is a linked resource, you can click that link for a more in-depth explanation. 
  2. To generate insights from the Performance metrics and Delivery by mailbox provider reports using AI:
    • Verify that the Give users access to generative AI tools and features and Give users access to Breeze Assistant settings are turned on in AI settings
    • In the top right of those reports, click the breezeSingleStar Generate insights icon
    • In the right panel, enter any follow-up questions, then click the send send icon
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