Based on Microsoft Graph REST API ( for more info see : [https://docs.microsoft.com/en-us/graph/api/resources/message?view=graph-rest-1.0]).\\

!Microsoft Graph Application registration
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It requires Microsoft Graph Application registration. Start at the Microsoft azure portal:\\
[https://azure.microsoft.com/en-us/features/azure-portal/]\\
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__Application registration__: Go to the App registrations and click on New registration:\\
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[attachments|new_registration.png]\\
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Name it. Select the Multitenant and personal Microsoft accounts type. The redirect url must ends with :register_microsoft_graph_api/. Then click on register.\\
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[attachments|register_app.png]
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__API permissions__ :\\
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MicrosoftMails task support OAuth 2.0 client credential grant. It requests the permissions from a directory admin. Go to the API permission. Click on Add permission, select Microsoft Graph.Choose "Application permissions".\\
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[attachments|permission_microsoft_graph.png]\\
[attachments|permission_app_permissions.png]\\
[attachments|permission_user.png]\\
[attachments|permissions_mail.png]\\
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To grant permissison for CrushFTP click on "Get Admin consent" button. Make sure your Webinterface host and port match with the host and port specified in App registration's redirect url.\\
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[attachments|admin_consent.png]\\
[attachments|client_id.png]\\

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You need to login with an admin account and grant permissions for your CrushFTP. Any changes on Azure App Registration -> API permissions require new admin consent.  
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!Settings\\
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[attachments|mail_task.png]\\
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Client ID, Client Secret, Tenant : Authentication related setting. Azur App registration -> Overview.\\
Folder : Support subfolders too like Folder/Subbolder/SubSubFolder\\
Search query : Search settings for messages. See [https://docs.microsoft.com/en-us/graph/query-parameters#search-parameter].\\
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