Summary
Sending from Aliases is now generally available in Exchange Online, allowing users to send emails from any mailbox alias. Admins can enable it via PowerShell or Exchange Admin Center. Additional features are being explored, and no compliance issues have been identified.
Message ID: MC1515939
Published: Oct 19, 2026
Service: Exchange Online
Tag: New feature, User impact, Admin impact
Microsoft Message
We’re pleased to announce that Sending from Aliases is now generally available for Exchange Online. We are continuing to investigate additional capabilities, including per-alias display names, further filtering and default controls, and calendar support post GA. For more details on the feature, review the blog post below.
Rollout Schedule:
Available now.
Impact on Your Organization
Who is affected
Users and admins in organizations using Exchange Online.
What will happen
This feature allows users to send emails from any alias configured on their mailbox, improving flexibility and reducing the need for workarounds.
Action Required/Recommendations
Admins can enable this feature via PowerShell or the Exchange Admin Center Settings.
Learn more: Sending from Aliases is now generally available
Compliance considerations
No compliance considerations identified. Review as appropriate for your organization.