How can we send email from microsft graph api to third party email providers like gmail/yahoo using asp.net

Question

How can we send email from microsft graph api to third party email providers like gmail/yahoo using asp.net

Aneesh A.S 6

Hi,
How can we send email from microsoft graph api to third party email providers like gmail/yahoo using asp.net

Aneesh A.S 6 Reputation points

2021-09-01T17:36:53.47+00:00

while sending the email from graph api, i got the below message.

Code: ResourceNotFound
Message: Resource could not be discovered.
Inner error:

2 answers

Your answer

Aneesh A.S 6 Reputation points

2021-09-01T17:36:53.47+00:00

while sending the email from graph api, i got the below message.

Code: ResourceNotFound
Message: Resource could not be discovered.
Inner error:

Answer 1

Aneesh A.S 6

hi,
I have attached the permissions, which is applied in the account.

0 comments

Answer 2

Danstan Onyango 3,996 Microsoft Employee

First, please add the code or request payload you are using to send mail and include the inner error details. You error is 404 and seems to be because you are using an account that does not have a mailbox.

As for sending mail from Graph to other third party providers, you just need to use MS Graph SendMail and add the emails in the payload. Here is a sample I have used to send mail to Gmail from Exchange.

POST https://graph.microsoft.com/v1.0/me/sendMail  
{  
    "message": {  
        "subject": "Meet for lunch?",  
        "body": {  
            "contentType": "Text",  
            "content": "The new cafeteria is open."  
        },  
        "toRecipients": [  
            {  
                "emailAddress": {  
                    "address": "******@otherdomain.com"  
                }  
            }  
        ],  
        "ccRecipients": [  
            {  
                "emailAddress": {  
                    "address": "******@gmail.com"  
                }  
            }  
        ]  
    },  
    "saveToSentItems": "false"  
}

But as I said, your problem seems to be with an account that does not have a mail box. Try again and share the details requested.

Aneesh A.S 6 Reputation points

2021-09-02T10:08:10.167+00:00

First of all thanks for your reply.
Its code is working fine in using the windows account(.onmicrosoft.com).
public static async Task SendMail(string userEmail)
{userEmail ="aneesh@Stuff .com";
GraphServiceClient graphClient;
AzureGraphAuthConfig config = AzureGraphAuthConfig.ReadFromJsonFile("appsettings.json");
IConfidentialClientApplication confidentialClientApplication = ConfidentialClientApplicationBuilder
.Create(config.GraphClientId)
.WithTenantId(config.GraphTenant)
.WithClientSecret(config.GraphClientSecret)
.Build();
ClientCredentialProvider authProvider = new ClientCredentialProvider(confidentialClientApplication);
graphClient = new GraphServiceClient(authProvider);
var message = new Message
{
Subject = "Meet for lunch?",
Body = new ItemBody
{
ContentType = BodyType.Text, Content = "The new cafeteria is open."
},
ToRecipients = new List<Recipient>()
{
new Recipient
{ EmailAddress = new EmailAddress
{ Address = userEmail }
}
}
};
await graphClient.Users[userEmail].SendMail(message, false).Request().PostAsync();
}
Aneesh A.S 6 Reputation points

2021-09-02T10:12:48.94+00:00

Errors as follows,

Code: ResourceNotFound
Message: Resource could not be discovered.
Inner error:
AdditionalData:
date: 2021-09-02T09:51:24
request-id:
client-request-id:
ClientRequestId:

{"error":{"code":"ResourceNotFound","message":"Resource could not be discovered.","innerError":{"date":"2021-09-02T09:51:24","request-id":"44444","client-request-id":"666"}}}

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How can we send email from microsft graph api to third party email providers like gmail/yahoo using asp.net

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