Create message

Namespace: microsoft.graph

Create a draft of a new message in either JSON or MIME format.

When using JSON format, you can:

• Include an attachment to the message.
• Update the draft later to add content to the body or change other message properties.

When using MIME format:

• Provide the applicable Internet message headers and the MIME content, all encoded in base64 format in the request body.
• * Add any attachments and S/MIME properties to the MIME content.

By default, this operation saves the draft in the Drafts folder.

Send the draft message in a subsequent operation.

Alternatively, send a new message in a single operation, or create a draft to forward, reply and reply-all to an existing message.

* Note: S/MIME message payloads are currently limited to 4 MB. Submission attempts that exceed this limit will result in anHTTP 413 Request Entity Too Large error response.

Permissions

One of the following permissions are required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type	Permissions (from least to most privileged)
Delegated (work or school account)	Mail.ReadWrite
Delegated (personal Microsoft account)	Mail.ReadWrite
Application	Mail.ReadWrite

HTTP request

POST /me/messages
POST /users/{id|userPrincipalName}/messages
POST /me/mailFolders/{id}/messages
POST /users/{id | userPrincipalName}/mailFolders/{id}/messages

Request headers

Name	Type	Description
Authorization	string	Bearer {token}. Required.
Content-Length	number	0. Required.
Content-Type	string	Nature of the data in the body of an entity. Required. Use application/json for a JSON object and text/plain for MIME content.

Request body

When using JSON format, provide a JSON representation of message object.

When specifying the body in MIME format, provide the MIME content with the applicable Internet message headers ("To", "CC", "BCC", "Subject"), all encoded in base64 format in the request body.

Since the message resource supports extensions, you can use the POST operation and add custom properties with your own data to the message while creating it.

Response

If successful, this method returns 201 Created response code and message object in the response body.

If the request body includes malformed MIME content, this method returns 400 Bad request and the following error message: "Invalid base64 string for MIME content".

Examples

Example 1: Create a new message draft using JSON format

Request

Here is an example of the request.

HTTP

POST https://graph.microsoft.com/v1.0/me/messages
Content-type: application/json

{
    "subject":"Did you see last night's game?",
    "importance":"Low",
    "body":{
        "contentType":"HTML",
        "content":"They were <b>awesome</b>!"
    },
    "toRecipients":[
        {
            "emailAddress":{
                "address":"AdeleV@contoso.onmicrosoft.com"
            }
        }
    ]
}

C#

// Code snippets are only available for the latest version. Current version is 5.x

var graphClient = new GraphServiceClient(requestAdapter);

var requestBody = new Message
{
	Subject = "Did you see last night's game?",
	Importance = Importance.Low,
	Body = new ItemBody
	{
		ContentType = BodyType.Html,
		Content = "They were <b>awesome</b>!",
	},
	ToRecipients = new List<Recipient>
	{
		new Recipient
		{
			EmailAddress = new EmailAddress
			{
				Address = "AdeleV@contoso.onmicrosoft.com",
			},
		},
	},
};
var result = await graphClient.Me.Messages.PostAsync(requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

JavaScript

const options = {
	authProvider,
};

const client = Client.init(options);

const message = {
    subject: 'Did you see last night\'s game?',
    importance: 'Low',
    body: {
        contentType: 'HTML',
        content: 'They were <b>awesome</b>!'
    },
    toRecipients: [
        {
            emailAddress: {
                address: 'AdeleV@contoso.onmicrosoft.com'
            }
        }
    ]
};

await client.api('/me/messages')
	.post(message);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Java

GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider( authProvider ).buildClient();

Message message = new Message();
message.subject = "Did you see last night's game?";
message.importance = Importance.LOW;
ItemBody body = new ItemBody();
body.contentType = BodyType.HTML;
body.content = "They were <b>awesome</b>!";
message.body = body;
LinkedList<Recipient> toRecipientsList = new LinkedList<Recipient>();
Recipient toRecipients = new Recipient();
EmailAddress emailAddress = new EmailAddress();
emailAddress.address = "AdeleV@contoso.onmicrosoft.com";
toRecipients.emailAddress = emailAddress;
toRecipientsList.add(toRecipients);
message.toRecipients = toRecipientsList;

graphClient.me().messages()
	.buildRequest()
	.post(message);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Go

import (
	  "context"
	  msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
	  graphmodels "github.com/microsoftgraph/msgraph-sdk-go/models"
	  //other-imports
)

graphClient, err := msgraphsdk.NewGraphServiceClientWithCredentials(cred, scopes)


requestBody := graphmodels.NewMessage()
subject := "Did you see last night's game?"
requestBody.SetSubject(&subject) 
importance := graphmodels.LOW_IMPORTANCE 
requestBody.SetImportance(&importance) 
body := graphmodels.NewItemBody()
contentType := graphmodels.HTML_BODYTYPE 
body.SetContentType(&contentType) 
content := "They were <b>awesome</b>!"
body.SetContent(&content) 
requestBody.SetBody(body)


recipient := graphmodels.NewRecipient()
emailAddress := graphmodels.NewEmailAddress()
address := "AdeleV@contoso.onmicrosoft.com"
emailAddress.SetAddress(&address) 
recipient.SetEmailAddress(emailAddress)

toRecipients := []graphmodels.Recipientable {
	recipient,

}
requestBody.SetToRecipients(toRecipients)

result, err := graphClient.Me().Messages().Post(context.Background(), requestBody, nil)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PowerShell

Import-Module Microsoft.Graph.Mail

$params = @{
	subject = "Did you see last night's game?"
	importance = "Low"
	body = @{
		contentType = "HTML"
		content = "They were <b>awesome</b>!"
	}
	toRecipients = @(
		@{
			emailAddress = @{
				address = "AdeleV@contoso.onmicrosoft.com"
			}
		}
	)
}

# A UPN can also be used as -UserId.
New-MgUserMessage -UserId $userId -BodyParameter $params

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PHP

<?php

// THIS SNIPPET IS A PREVIEW FOR THE KIOTA BASED SDK. NON-PRODUCTION USE ONLY
$graphServiceClient = new GraphServiceClient($requestAdapter);

$requestBody = new Message();
$requestBody->setSubject('Did you see last night\'s game?');

$requestBody->setImportance(new Importance('low'));

$body = new ItemBody();
$body->setContentType(new BodyType('html'));

$body->setContent('They were <b>awesome</b>!');


$requestBody->setBody($body);
$toRecipientsRecipient1 = new Recipient();
$toRecipientsRecipient1EmailAddress = new EmailAddress();
$toRecipientsRecipient1EmailAddress->setAddress('AdeleV@contoso.onmicrosoft.com');


$toRecipientsRecipient1->setEmailAddress($toRecipientsRecipient1EmailAddress);

$toRecipientsArray []= $toRecipientsRecipient1;
$requestBody->setToRecipients($toRecipientsArray);




$result = $graphServiceClient->me()->messages()->post($requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Python

// THE PYTHON SDK IS IN PREVIEW. NON-PRODUCTION USE ONLY
client =  GraphServiceClient(request_adapter)

request_body = Message()
request_body.subject = 'Did you see last night\'s game?'

request_body.importance(Importance.Low('importance.low'))

body = ItemBody()
body.contenttype(BodyType.HTML('bodytype.html'))

body.content = 'They were <b>awesome</b>!'


request_body.body = body
to_recipients_recipient1 = Recipient()
to_recipients_recipient1email_address = EmailAddress()
to_recipients_recipient1email_address.address = 'AdeleV@contoso.onmicrosoft.com'


to_recipients_recipient1.email_address = to_recipients_recipient1email_address

toRecipientsArray []= toRecipientsRecipient1;
request_body.torecipients(toRecipientsArray)





result = await client.me.messages.post(request_body = request_body)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

In the request body, supply a JSON representation of message object.

Response

Here is an example of the response. Note: The response object shown here might be shortened for readability.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context":"https://graph.microsoft.com/v1.0/$metadata#users('94447c6e-ea4c-494c-a9ed-d905e366c5cb')/messages/$entity",
    "@odata.etag":"W/\"CQAAABYAAABK4UfANE/UR5clSilZtIuWAAC1vdti\"",
    "id":"AAMkADNlNYjSAAA=",
    "createdDateTime":"2017-07-22T01:53:56Z",
    "lastModifiedDateTime":"2017-07-22T01:53:57Z",
    "changeKey":"CQAAABYAAABK4UfANE/UR5clSilZtIuWAAC1vdti",
    "categories":[

    ],
    "receivedDateTime":"2017-07-22T01:53:57Z",
    "sentDateTime":"2017-07-22T01:53:57Z",
    "hasAttachments":false,
    "internetMessageId":"<MWHPR1301MB@MWHPR1301MB.namprd13.prod.outlook.com>",
    "subject":"Did you see last night's game?",
    "bodyPreview":"They were awesome!",
    "importance":"low",
    "parentFolderId":"AAMkADNlNWAAAAAAEPAAA=",
    "conversationId":"AAQkADNlNFdXGBnqtY=",
    "conversationIndex":"AQHTe7/VAniOJVgCxEmtF1z6ZY1rFQ==",
    "isDeliveryReceiptRequested":false,
    "isReadReceiptRequested":false,
    "isRead":true,
    "isDraft":true,
    "webLink":"https://outlook.office365.com/owa/?ItemID=AAMkADNlNYjSAAA%3D&exvsurl=1&viewmodel=ReadMessageItem",
    "inferenceClassification":"focused",
    "body":{
        "contentType":"html",
        "content":"<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n</head>\r\n<body>\r\nThey were <b>awesome</b>!\r\n</body>\r\n</html>\r\n"
    },
    "toRecipients":[
        {
            "emailAddress":{
                "name":"Adele Vance",
                "address":"AdeleV@contoso.onmicrosoft.com"
            }
        }
    ],
    "ccRecipients":[

    ],
    "bccRecipients":[

    ],
    "replyTo":[

    ]
}

Example 2: Create message draft that includes custom message headers

Request

HTTP

POST https://graph.microsoft.com/v1.0/me/messages
Content-type: application/json

{
    "subject":"9/8/2018: concert",
    "body":{
        "contentType":"HTML",
        "content":"The group represents Washington."
    },
    "toRecipients":[
        {
            "emailAddress":{
                "address":"AlexW@contoso.OnMicrosoft.com"
            }
        }
    ],
    "internetMessageHeaders":[
        {
            "name":"x-custom-header-group-name",
            "value":"Washington"
        },
        {
            "name":"x-custom-header-group-id",
            "value":"WA001"
        }
    ]
}

C#

// Code snippets are only available for the latest version. Current version is 5.x

var graphClient = new GraphServiceClient(requestAdapter);

var requestBody = new Message
{
	Subject = "9/8/2018: concert",
	Body = new ItemBody
	{
		ContentType = BodyType.Html,
		Content = "The group represents Washington.",
	},
	ToRecipients = new List<Recipient>
	{
		new Recipient
		{
			EmailAddress = new EmailAddress
			{
				Address = "AlexW@contoso.OnMicrosoft.com",
			},
		},
	},
	InternetMessageHeaders = new List<InternetMessageHeader>
	{
		new InternetMessageHeader
		{
			Name = "x-custom-header-group-name",
			Value = "Washington",
		},
		new InternetMessageHeader
		{
			Name = "x-custom-header-group-id",
			Value = "WA001",
		},
	},
};
var result = await graphClient.Me.Messages.PostAsync(requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

JavaScript

const options = {
	authProvider,
};

const client = Client.init(options);

const message = {
    subject: '9/8/2018: concert',
    body: {
        contentType: 'HTML',
        content: 'The group represents Washington.'
    },
    toRecipients: [
        {
            emailAddress: {
                address: 'AlexW@contoso.OnMicrosoft.com'
            }
        }
    ],
    internetMessageHeaders: [
        {
            name: 'x-custom-header-group-name',
            value: 'Washington'
        },
        {
            name: 'x-custom-header-group-id',
            value: 'WA001'
        }
    ]
};

await client.api('/me/messages')
	.post(message);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Java

GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider( authProvider ).buildClient();

Message message = new Message();
message.subject = "9/8/2018: concert";
ItemBody body = new ItemBody();
body.contentType = BodyType.HTML;
body.content = "The group represents Washington.";
message.body = body;
LinkedList<Recipient> toRecipientsList = new LinkedList<Recipient>();
Recipient toRecipients = new Recipient();
EmailAddress emailAddress = new EmailAddress();
emailAddress.address = "AlexW@contoso.OnMicrosoft.com";
toRecipients.emailAddress = emailAddress;
toRecipientsList.add(toRecipients);
message.toRecipients = toRecipientsList;
LinkedList<InternetMessageHeader> internetMessageHeadersList = new LinkedList<InternetMessageHeader>();
InternetMessageHeader internetMessageHeaders = new InternetMessageHeader();
internetMessageHeaders.name = "x-custom-header-group-name";
internetMessageHeaders.value = "Washington";
internetMessageHeadersList.add(internetMessageHeaders);
InternetMessageHeader internetMessageHeaders1 = new InternetMessageHeader();
internetMessageHeaders1.name = "x-custom-header-group-id";
internetMessageHeaders1.value = "WA001";
internetMessageHeadersList.add(internetMessageHeaders1);
message.internetMessageHeaders = internetMessageHeadersList;

graphClient.me().messages()
	.buildRequest()
	.post(message);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Go

import (
	  "context"
	  msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
	  graphmodels "github.com/microsoftgraph/msgraph-sdk-go/models"
	  //other-imports
)

graphClient, err := msgraphsdk.NewGraphServiceClientWithCredentials(cred, scopes)


requestBody := graphmodels.NewMessage()
subject := "9/8/2018: concert"
requestBody.SetSubject(&subject) 
body := graphmodels.NewItemBody()
contentType := graphmodels.HTML_BODYTYPE 
body.SetContentType(&contentType) 
content := "The group represents Washington."
body.SetContent(&content) 
requestBody.SetBody(body)


recipient := graphmodels.NewRecipient()
emailAddress := graphmodels.NewEmailAddress()
address := "AlexW@contoso.OnMicrosoft.com"
emailAddress.SetAddress(&address) 
recipient.SetEmailAddress(emailAddress)

toRecipients := []graphmodels.Recipientable {
	recipient,

}
requestBody.SetToRecipients(toRecipients)


internetMessageHeader := graphmodels.NewInternetMessageHeader()
name := "x-custom-header-group-name"
internetMessageHeader.SetName(&name) 
value := "Washington"
internetMessageHeader.SetValue(&value) 
internetMessageHeader1 := graphmodels.NewInternetMessageHeader()
name := "x-custom-header-group-id"
internetMessageHeader1.SetName(&name) 
value := "WA001"
internetMessageHeader1.SetValue(&value) 

internetMessageHeaders := []graphmodels.InternetMessageHeaderable {
	internetMessageHeader,
	internetMessageHeader1,

}
requestBody.SetInternetMessageHeaders(internetMessageHeaders)

result, err := graphClient.Me().Messages().Post(context.Background(), requestBody, nil)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PowerShell

Import-Module Microsoft.Graph.Mail

$params = @{
	subject = "9/8/2018: concert"
	body = @{
		contentType = "HTML"
		content = "The group represents Washington."
	}
	toRecipients = @(
		@{
			emailAddress = @{
				address = "AlexW@contoso.OnMicrosoft.com"
			}
		}
	)
	internetMessageHeaders = @(
		@{
			name = "x-custom-header-group-name"
			value = "Washington"
		}
		@{
			name = "x-custom-header-group-id"
			value = "WA001"
		}
	)
}

# A UPN can also be used as -UserId.
New-MgUserMessage -UserId $userId -BodyParameter $params

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PHP

<?php

// THIS SNIPPET IS A PREVIEW FOR THE KIOTA BASED SDK. NON-PRODUCTION USE ONLY
$graphServiceClient = new GraphServiceClient($requestAdapter);

$requestBody = new Message();
$requestBody->setSubject('9/8/2018: concert');

$body = new ItemBody();
$body->setContentType(new BodyType('html'));

$body->setContent('The group represents Washington.');


$requestBody->setBody($body);
$toRecipientsRecipient1 = new Recipient();
$toRecipientsRecipient1EmailAddress = new EmailAddress();
$toRecipientsRecipient1EmailAddress->setAddress('AlexW@contoso.OnMicrosoft.com');


$toRecipientsRecipient1->setEmailAddress($toRecipientsRecipient1EmailAddress);

$toRecipientsArray []= $toRecipientsRecipient1;
$requestBody->setToRecipients($toRecipientsArray);


$internetMessageHeadersInternetMessageHeader1 = new InternetMessageHeader();
$internetMessageHeadersInternetMessageHeader1->setName('x-custom-header-group-name');

$internetMessageHeadersInternetMessageHeader1->setValue('Washington');


$internetMessageHeadersArray []= $internetMessageHeadersInternetMessageHeader1;
$internetMessageHeadersInternetMessageHeader2 = new InternetMessageHeader();
$internetMessageHeadersInternetMessageHeader2->setName('x-custom-header-group-id');

$internetMessageHeadersInternetMessageHeader2->setValue('WA001');


$internetMessageHeadersArray []= $internetMessageHeadersInternetMessageHeader2;
$requestBody->setInternetMessageHeaders($internetMessageHeadersArray);




$result = $graphServiceClient->me()->messages()->post($requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Python

// THE PYTHON SDK IS IN PREVIEW. NON-PRODUCTION USE ONLY
client =  GraphServiceClient(request_adapter)

request_body = Message()
request_body.subject = '9/8/2018: concert'

body = ItemBody()
body.contenttype(BodyType.HTML('bodytype.html'))

body.content = 'The group represents Washington.'


request_body.body = body
to_recipients_recipient1 = Recipient()
to_recipients_recipient1email_address = EmailAddress()
to_recipients_recipient1email_address.address = 'AlexW@contoso.OnMicrosoft.com'


to_recipients_recipient1.email_address = to_recipients_recipient1email_address

toRecipientsArray []= toRecipientsRecipient1;
request_body.torecipients(toRecipientsArray)


internet_message_headers_internet_message_header1 = InternetMessageHeader()
internet_message_headers_internet_message_header1.name = 'x-custom-header-group-name'

internet_message_headers_internet_message_header1.value = 'Washington'


internetMessageHeadersArray []= internetMessageHeadersInternetMessageHeader1;
internet_message_headers_internet_message_header2 = InternetMessageHeader()
internet_message_headers_internet_message_header2.name = 'x-custom-header-group-id'

internet_message_headers_internet_message_header2.value = 'WA001'


internetMessageHeadersArray []= internetMessageHeadersInternetMessageHeader2;
request_body.internetmessageheaders(internetMessageHeadersArray)





result = await client.me.messages.post(request_body = request_body)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

In the request body, supply a JSON representation of message object.

Response

Here is an example of the response. Note: Internet message headers are not returned by default in a POST response. The response object shown here may also be truncated for brevity. All of the properties will be returned from an actual call.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context":"https://graph.microsoft.com/v1.0/$metadata#users('7f180cbb-a5ae-457c-b7e8-6f5b42ba33e7')/messages/$entity",
    "@odata.etag":"W/\"CQAAABYAAAC4ofQHEIqCSbQPot83AFcbAAAnjjuE\"",
    "id":"AAMkADhNmAAA=",
    "createdDateTime":"2018-09-09T02:54:56Z",
    "lastModifiedDateTime":"2018-09-09T02:54:56Z",
    "changeKey":"CQAAABYAAAC4ofQHEIqCSbQPot83AFcbAAAnjjuE",
    "categories":[

    ],
    "receivedDateTime":"2018-09-09T02:54:56Z",
    "sentDateTime":"2018-09-09T02:54:56Z",
    "hasAttachments":false,
    "internetMessageId":"<MWHPR220MB1120.namprd22.prod.outlook.com>",
    "subject":"9/8/2018: concert",
    "bodyPreview":"The group represents Washington.",
    "importance":"normal",
    "parentFolderId":"AAMkADhAAAAAAEPAAA=",
    "conversationId":"AAQkADhNCuP8OKSm-0NE=",
    "isDeliveryReceiptRequested":false,
    "isReadReceiptRequested":false,
    "isRead":true,
    "isDraft":true,
    "webLink":"https://outlook.office365.com/owa/?ItemID=AAMkADhNmAAA%3D&exvsurl=1&viewmodel=ReadMessageItem",
    "inferenceClassification":"focused",
    "body":{
        "contentType":"html",
        "content":"<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n</head>\r\n<body>\r\nThe group represents Washington.\r\n</body>\r\n</html>\r\n"
    },
    "toRecipients":[
        {
            "emailAddress":{
                "name":"Alex Wilber",
                "address":"AlexW@contoso.OnMicrosoft.com"
            }
        }
    ],
    "ccRecipients":[

    ],
    "bccRecipients":[

    ],
    "replyTo":[

    ],
    "flag":{
        "flagStatus":"notFlagged"
    }
}

Example 3: Create a new message draft using MIME format

Request

HTTP

POST https://graph.microsoft.com/v1.0/me/messages
Content-type: text/plain

Q29udGVudC1UeXBlOiBhcHBsaWNhdGlvbi9wa2NzNy1taW1lOw0KCW5hbWU9c21pbWUucDdtOw0KCXNtaW1lLXR5cGU9ZW52ZWxvcGVkLWRhdGENCk1pbWUtVmVyc2lvbjogMS4wIChNYWMgT1MgWCBNYWlsIDEzLjAgXCgzNjAxLjAuMTBcKSkNClN1YmplY3Q6IFJlOiBUZXN0aW5nIFMvTUlNRQ0KQ29udGVudC1EaXNwb3Np...

C#

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

JavaScript

const options = {
	authProvider,
};

const client = Client.init(options);

const message = Q29udGVudC1UeXBlOiBhcHBsaWNhdGlvbi9wa2NzNy1taW1lOw0KCW5hbWU9c21pbWUucDdtOw0KCXNtaW1lLXR5cGU9ZW52ZWxvcGVkLWRhdGENCk1pbWUtVmVyc2lvbjogMS4wIChNYWMgT1MgWCBNYWlsIDEzLjAgXCgzNjAxLjAuMTBcKSkNClN1YmplY3Q6IFJlOiBUZXN0aW5nIFMvTUlNRQ0KQ29udGVudC1EaXNwb3Np...;

await client.api('/me/messages')
	.post(message);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Java

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Go

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PowerShell

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PHP

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Python

Snippet not available

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Response

Here is an example of the response.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('0aaa0aa0-0000-0a00-a00a-0000009000a0')/messages/$entity",
    "@odata.etag": "W/\"AAAAAAAAAAAa00AAAa0aAaAa0a0AAAaAAAAaAa0a\"",
    "id": "AAMkADA1MTAAAAqldOAAA=",
    "createdDateTime": "2021-04-23T18:13:44Z",
    "lastModifiedDateTime": "2021-04-23T18:13:44Z",
    "changeKey": "AAAAAAAAAAAA00aaaa000aaA",
    "categories": [],
    "receivedDateTime": "2021-04-23T18:13:44Z",
    "sentDateTime": "2021-02-28T07:15:00Z",
    "hasAttachments": false,
    "internetMessageId": "<AAAAAAAAAA@AAAAAAA0001AA0000.codcod00.prod.outlook.com>",
    "subject": "Internal Resume Submission: Sales Associate",
    "bodyPreview": "Hi, Megan.I have an interest in the Sales Associate position. Please consider my resume, which you can access here...",
    "importance": "normal",
    "parentFolderId": "LKJDSKJHkjhfakKJHFKWKKJHKJdhkjHDK==",
    "conversationId": "SDSFSmFSDGI5LWZhYjc4fsdfsd=",
    "conversationIndex": "Adfsdfsdfsdfw==",
    "isDeliveryReceiptRequested": null,
    "isReadReceiptRequested": false,
    "isRead": true,
    "isDraft": true,
    "webLink": "https://outlook.office365.com/owa/?ItemID=AAMkAGNhOWAvsurl=1&viewmodel=ReadMessageItem",
    "inferenceClassification": "focused",
    "body": {
        "contentType": "text",
        "content": "Hi, Megan.I have an interest in the Sales Associate position. Please consider my resume, which you can access here... Regards,Alex"
    },
    "sender": {
        "emailAddress": {
            "name": "Alex Wilber",
            "address": "AlexW@contoso.com"
        }
    },
    "from": {
        "emailAddress": {
            "name": "Alex Wilber",
            "address": "AlexW@contoso.com"
        }
    },
    "toRecipients": [
        {
            "emailAddress": {
                "name": "Megan Bowen",
                "address": "MeganB@contoso.com"
            }
        }
    ],
    "ccRecipients": [],
    "bccRecipients": [],
    "replyTo": [],
    "flag": {
        "flagStatus": "notFlagged"
    }
}

If the request body includes malformed MIME content, this method returns the following error message.

HTTP/1.1 400 Bad Request
Content-type: application/json

{
    "error": {
        "code": "ErrorMimeContentInvalidBase64String",
        "message": "Invalid base64 string for MIME content."
    }
}

See also

• Add custom data to resources using extensions
• Add custom data to users using open extensions (preview)