Teams meeting invitations use an internal alias instead of my primary email - responses bounce

Question

Teams meeting invitations use an internal alias instead of my primary email - responses bounce

Ferreol Tournebize 0

Hello,

My Microsoft account primary email is on my domain When I send meeting invitations from Microsoft Teams, the reply-to address is set to an internal alias: non sense

This causes two problems:

When recipients accept or decline my meeting invitations, their response bounces with error: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302)
I never see their responses.

I cannot remove or modify this internal alias from my account settings. I have tried adding and removing an @outlook.com alias, switching primary aliases, and signing out/back into Teams. The problem persists.

Request: Please update my account so that Teams uses my primary email address mydomain for meeting invitation responses, or remove/replace the internal alias with a functional address.

Thank you for your help.

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1 answer

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Answer 1

This behavior matches a Microsoft account that uses a third-party or non-Outlook address as the sign-in alias. In that case, Teams and related meeting response flows can use a generated outlook_[long series of letters and numbers]@outlook.com address or another alias instead of the expected primary address, and acceptance/decline responses can fail or bounce.

The supported self-service action is:

Open Edit account info: https://account.live.com/names/manage
Select Add email.
Create a new Outlook.com alias.
Set that new Outlook.com alias as the primary alias.
Keep the existing domain address as a secondary alias if sign-in with that address is still needed.
Sign out of Teams and Outlook, then sign back in.

Important supported facts:

Aliases on a Microsoft account share the same password, contacts, storage, subscriptions, and account settings.
The primary alias is the one that appears on devices and is the address Microsoft account experiences commonly use.
Personal Microsoft accounts and Microsoft 365 work or school accounts cannot be merged.
If the account is showing the "Which account do you want to use?" prompt because both a personal account and a work or school account use the same email address, changing the personal account’s primary alias can remove that conflict.

What cannot be done from the documented self-service options:

There is no documented way here to directly edit or remove the generated internal Teams/Outlook response address if it is tied to how the Microsoft account is configured.
Support agents are not allowed to access and change account details directly.

If the Outlook.com alias workaround has already been tried and the problem still persists, the remaining documented path is to use Microsoft Support through the account support flow.

References: