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Exchange Team Blog
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High Volume Email: Continued support for Basic Authentication & other important updates

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The_Exchange_Team
Platinum Contributor
May 06, 2025
GA date for this feature has been moved to March 2026 High Volume Email (HVE) for Microsoft 365 enables customers to send large volumes of email to internal recipients without recipient rate limits...
Updated Oct 06, 2025
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ridvanoeztuerk's avatar
ridvanoeztuerk
Copper Contributor
Oct 06, 2025

Do you plan to make exception for MS Teams channels ?

We moved to HVE to address Distributions Lists and MS Teams Channels, now they are treated as external and cannot be addressed anymore...

I get it, it is teams.ms and belongs to Microsoft but really?