Exchange Online – Major Update – Top domain mail flow report is retiring on July 6, 2026.

Hi All,

Greetings. LIFE IS BEAUTIFUL 🙂

Today, I am sharing one of the major updates related to Exchange Online.

Major Update – Top domain mail flow report in Exchange Online is retiring

If you are new to Exchange Online – we have detailed article – how to navigate to Exchange Online admin center. Small Tips and Tricks – Exchange admin center – How to navigate to Exchange admin center

Details

• Microsoft is retiring the Top domain mail flow report in the Exchange admin center (EAC)

• Microsoft is doing this change as a part of ongoing work to streamline and modernize mail flow reporting in Exchange Online
• This will help admins consolidate workflows and adopt more flexible reporting options.

Timelines

• The Top domain mail flow report will be retired on July 6, 2026.
• Any workflows that rely on this report for troubleshooting, monitoring, or reporting will need to transition to an alternative reporting method.
• No other Exchange Online mail flow reports are impacted by this change.
• This retirement does not change mail delivery behavior or message routing.

References

• Small Tips and Tricks – Exchange admin center – How to navigate to Exchange admin center

Thank you for reading! Have a WONDERFUL time ahead 🙂