The mailbox is either inactive, soft-deleted, or is hosted on-premise.

Sourav 170 Reputation points
2023-11-27T05:00:51.0533333+00:00

When I'm trying to read my email using graph API explorer :
https://graph.microsoft.com/v1.0/me/messages
I'm getting proper response.
When I'm trying to achieve same thing using

await graphServiceClient.Users["Faq@souravasfaqgmail.onmicrosoft.com"].Messages.GetAsync();


I'm getting this error:

Code: MailboxNotEnabledForRESTAPI Message: The mailbox is either inactive, soft-deleted, or is hosted on-premise.

What would be the proper way to resolve this.
Thanks in advance

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Accepted answer
  1. CarlZhao-MSFT 40,231 Reputation points
    2023-11-27T06:11:54.3566667+00:00

    Hi @Sourav

    This error indicates that the target user ("Faq@souravasfaqgmail.onmicrosoft.com") is missing an Office 365 license.

    Hope this helps.

    If the reply is helpful, please click Accept Answer and kindly upvote it. If you have additional questions about this answer, please click Comment.

    1 person found this answer helpful.

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