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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(102.4, 38%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
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["******@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
Hi @Sourav
This error indicates that the target user ("******@souravasfaqgmail.onmicrosoft.com") is missing an Office 365 license.
Hope this helps.
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Hi @Sourav
Is there anything else I can help you with regarding this issue? If you still need further help, please feel free to let me know. If your question has been solved, then you can click "Accept Answer", which may help members with similar questions find the answer easily. Thank you very much!