check before: 2026-07-05
Product:
Exchange, Microsoft 365 admin center
Platform:
Online, World tenant
Status:
Change type:
User impact, Admin impact, Retirement
Links:
Details:
Summary:
The Top domain mail flow report in Exchange Online's Exchange admin center will retire on July 6, 2026. After this, it will be inaccessible, requiring admins to adopt alternative reporting methods. No other mail flow reports or mail delivery behaviors are affected. Prepare by updating documentation and validating new workflows.
Details:
[Introduction]
We're retiring the Top domain mail flow report in the Exchange admin center (EAC) in WW. This change is part of our ongoing work to streamline and modernize mail flow reporting in Exchange Online, helping admins consolidate workflows and adopt more flexible reporting options.
[When this will happen]
The Top domain mail flow report will be retired on July 6, 2026.
Change Category:
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Scope:
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Release Phase:
Created:
2026-04-07
updated:
2026-04-07
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
Loss of Reporting Capability
Admins will lose access to the Top domain mail flow report, impacting their ability to monitor and troubleshoot mail flow effectively.
- roles: Exchange Admin, IT Support Specialist
- references: https://techcommunity.microsoft.com/t5/exchange-team-blog/top-domain-mail-flow-report-in-exchange-online-is-retiring/ba-p/3741230
Increased Workload for Admins
Admins will need to invest time in finding and implementing alternative reporting methods, increasing their workload and potentially delaying other tasks.
- roles: Exchange Admin, IT Manager
- references: https://techcommunity.microsoft.com/t5/exchange-team-blog/top-domain-mail-flow-report-in-exchange-online-is-retiring/ba-p/3741230
Potential for Increased Errors
Without proper preparation, the transition to alternative reporting methods may lead to errors in reporting and monitoring, affecting decision-making.
- roles: Exchange Admin, Data Analyst
- references: https://techcommunity.microsoft.com/t5/exchange-team-blog/top-domain-mail-flow-report-in-exchange-online-is-retiring/ba-p/3741230
Documentation Gaps
Existing documentation referencing the Top domain mail flow report will become outdated, leading to confusion and inefficiencies in operations.
- roles: Technical Writer, Exchange Admin
- references: https://techcommunity.microsoft.com/t5/exchange-team-blog/top-domain-mail-flow-report-in-exchange-online-is-retiring/ba-p/3741230
User Experience Impact
Users may experience delays in issue resolution as admins adapt to new reporting methods, potentially affecting service quality.
- roles: IT Support Specialist, End User
- references: https://techcommunity.microsoft.com/t5/exchange-team-blog/top-domain-mail-flow-report-in-exchange-online-is-retiring/ba-p/3741230
Configutation Options**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 2 days ago ago
