How to request read receipt for a email sent using Graph API sendEmail

Hi @ManojKumar Dharmar ,

I tested "isReadReceiptRequested" property using Send mail Microsoft Graph API in both Graph Explorer and Postman tool and it is working as expected. You can try using the below equivalent Graph SDK code base by setting up the "isReadReceiptRequested" property at the start of the request body in the code (as shown below).

Microsoft Graph C#.NET SDK ( sample code) :

GraphServiceClient graphClient = new GraphServiceClient( authProvider );  
  
var message = new Message  
{  
	IsReadReceiptRequested = true,  
	Subject = "Email Read Receipt Requested",  
	Body = new ItemBody  
	{  
		ContentType = BodyType.Text,  
		Content = "Read Receipt Test"  
	},  
	ToRecipients = new List<Recipient>()  
	{  
		new Recipient  
		{  
			EmailAddress = new EmailAddress  
			{  
				Address = "******@o365XXXX.onmicrosoft.com"  
			}  
		}  
	}  
};  
  
await graphClient.Me  
	.SendMail(message,null)  
	.Request()  
	.PostAsync();  

Microsoft Graph JavaScript SDK ( sample code) :

const options = {  
	authProvider,  
};  
  
const client = Client.init(options);  
  
const sendMail = {message: {isReadReceiptRequested: true,subject: 'Email Read Receipt Requested',body: {contentType: 'Text',content: 'Read Receipt Test'},toRecipients: [{emailAddress: {address: '******@o365XXXX.onmicrosoft.com'}}]}};  
  
await client.api('/me/sendMail')  
	.post(sendMail);  

My testing outcome in Postman/Graph Explorer using Send mail Graph API :

Hope this helps.

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