Top Domains Reporting is not available in the following circumstances.
- Active/Inactive autoresponders
- Program emails
- Canceled emails
- Automated Messaging Groups (Transact)
Top Domains Reporting works by collecting and organizing the data on your contacts' top domains when the email prepares to send, and then finalizes the compiled data when the email completes its send. If autoresponders and program emails are used, this information is not able to complete because it is continuously sending. For canceled emails, the send doesn't complete so the data is never completed and is not provided.