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First, You need to set up the Microsoft Graph API configurations, You have to create a Free Microsoft 365 Developer Tenant account from here to register your Azure account to get the tenant ID which is later required to send the email. After creating the account, copy the email address in the "Administrator" section and use it to sign up to for Azure.
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Figure 1: Microsoft 365 Developer Tenant Account Subscription
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Add API Permissions
Last The last thing to do is to give the Azure app the permission to send emails via the Microsoft Graph API.
To perform this, from the app's overview page, go to API Permissions > Add a Permission > Microsoft Graph > Application Permissions.
Use the search bar to search for "Mail", Select Mail list and tick "Mail.Send". Optionally you can also tick "User.Read.All" if you want to see the list of users who can use this Azure app. Add the permissions to grant your Azure app the permission to send emails.
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Next up is to give the request the appropriate parameters, this request has to include the following:
- A client Client ID
- The client Client secret
- A grant Grant type
- And a scopeScope
Following the steps above, you should have the client ID and client secret with you, simply enter those two values with the name "client_id" and "client_secret".
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Sending the Email
Courtesy to of Microsoft's documentation and this Stackoverflow guide, to send an email, we will need another POST request with the link:
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For this guide, we will be using the first one since we are using client credentials flow as explained above, enter the appropriate information to your second JSON tool and make the Body Type as "Custom JSON Payload".
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