Power BI subscriptions: Changes to notification delivery and sender experience

🚨 The Signal: Power BI is changing how subscription notifications are delivered, including sender identity and email formatting. This aims to improve reliability and service health, potentially affecting existing mail-processing rules.

The Impact

Security teams and IT admins are affected by potential disruption to email security rules, posing a low risk of missed legitimate notifications.

• Security Teams: May need to update email allow lists for Power BI notifications.
• IT Admins: Existing mail flow rules for Power BI emails could break.
• End Users: May notice different sender or formatting for Power BI subscription emails.

The Action

1. Review existing mail-processing rules, routing rules, allow lists, and safe-sender configurations for Power BI subscription emails.
2. Identify any rules explicitly configured for Power BI sender domains or specific email formats.
3. Monitor Power BI subscription email delivery post-rollout (late Sept 2026 - early Jan 2027) for any blocked or misrouted notifications.
4. Update mail flow rules and allow lists as necessary to accommodate new sender identities or formatting changes.

Domain: Exchange · Impact: medium · Workload: Exchange Online