To determine if things have changed, it is best to look at percentages. For example, if your house file has tripled but your hard bounce count has doubled, your overall percentage rate of bounces has gone down.
  1. Go to Data Management > Reports > ReportWriter (tab).
  2. Search for the word Domain to make sure that an Email Domain Performance Report hasn't already been saved on your site. If it has, skip the steps below and run that report.
  3. Click Create a New Report.
  4. Select Email in the drop down and the Messages by Domain radio button.
  5. Click Next to go to Select Columns.
  6. Add desired fields including:
    • Email Campaign Name
    • Message Name
    • Domain Name
    • Send Started Date
    • Emails Sent
    • Select any or all of the fields in the Email Performance Statistics section - be sure to include the coorsponding percentages, e.g.
      • Hard Bounces
      • Hard Bounce Percent
      • Soft Bounces
      • Soft Bounce Percent
  7. Click Next twice to go to step 4, Select Sort Order:
    • For the First, sort by field select Domain Name.
    • For the first Then by field select Send Started Date and select Descending.
  8. On step 5, Configure Filters,
    • Configure the desired email campaigns. For a more holistic view, try to select as many as possible or at least the most active campaigns and
    • Configure the desired domains.
    • Add another filter selecting Email Performance Statistics in the first drop down, Email Sent in the second drop down, Is Greater Than Or Equal To in the third drop down, and enter 50 in the box.
    • Add another filter selecting Email Performance Statistics in the first drop down, Send Started Date in the second drop down, In Predefined Range in the third drop down, and Last 90 Days in the final drop down.
  9. Continue through the on screen prompts to run and/or save the report.
  10. Once the report is run, Download the results as CSV file.
If you see an unwanted change in the percentages for a specific domain, contact support to have this investigated further. Note that if the timing of bounce percentage(s) changing correlates with a large number of new constituents added to your site, this may be expected as the new constituent records have not been filtered out due to previous bounces.