MC1266025 | (Updated) Update on custom domain guidance for Teams Event emails

Service

Microsoft Teams

Last Updated

2026-08-11T16:37:13.03Z

Published

2026-03-30T21:50:08Z

Message ID

MC1266025

Updated August 11, 2026: We are updating this post as a clarification. The change below was for WW customers only. This change does not apply to Sovereign Cloud environments. Customers in GCC, GCC High, and DoD must continue to configure a custom domain to use custom HTML editing and email template customization for Teams Events emails. We apologize for any confusion. We're clarifying our guidance around custom domain configuration for Teams event emails, based on customer feedback and recent questions. In a previous Message Center post (MC1234575 and MC1176301), we communicated that configuring a custom domain was required to use custom HTML editing for event emails. Based on customer feedb...

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