message: createReply

Namespace: microsoft.graph

Create a draft to reply to the sender of a message in either JSON or MIME format.

When using JSON format:

• Specify either a comment or the body property of the message parameter. Specifying both will return an HTTP 400 Bad Request error.
• If replyTo is specified in the original message, per Internet Message Format (RFC 2822), you should send the reply to the recipients in replyTo, and not the recipients in from.
• You can update the draft later to add reply 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.

Send the draft message in a subsequent operation.

Alternatively, reply to a message in a single operation.

This API is available in the following national cloud deployments.

Global service	US Government L4	US Government L5 (DOD)	China operated by 21Vianet
✅	✅	✅	✅

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

Permission type	Least privileged permissions	Higher privileged permissions
Delegated (work or school account)	Mail.ReadWrite	Not available.
Delegated (personal Microsoft account)	Mail.ReadWrite	Not available.
Application	Mail.ReadWrite	Not available.

HTTP request

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

Request headers

Name	Type	Description
Authorization	string	Bearer {token}. Required. Learn more about authentication and authorization.
Content-Type	string	Nature of the data in the body of an entity. Use application/json for a JSON object and text/plain for MIME content.
Prefer: outlook.timezone	string	Sets the timezone in the email thread to the desired format while replying to an email. Values can be any of the outlook supportedTimeZones. If the header is not specified, by default UTC timezone is followed. Optional.

Request body

This method does not require a request body.

However, for creating a reply draft using MIME format, provide the MIME content with the applicable Internet message headers, all encoded in base64 format in the request body.

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 draft message in JSON format to reply to an existing message.

Here is an example of how to call this API.

Request

The following example shows a request.

HTTP

POST https://graph.microsoft.com/v1.0/me/messages/{id}/createReply

C#

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

// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Me.Messages["{message-id}"].CreateReply.PostAsync(null);

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

CLI

mgc users messages create-reply post --user-id {user-id} --message-id {message-id}

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

Go

// Code snippets are only available for the latest major version. Current major version is $v1.*

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


// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=go
createReply, err := graphClient.Me().Messages().ByMessageId("message-id").CreateReply().Post(context.Background(), nil)

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

Java

// Code snippets are only available for the latest version. Current version is 6.x

GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);

var result = graphClient.me().messages().byMessageId("{message-id}").createReply().post(null);

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);

await client.api('/me/messages/{id}/createReply')
	.post();

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

PHP

<?php
use Microsoft\Graph\GraphServiceClient;


$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);


$result = $graphServiceClient->me()->messages()->byMessageId('message-id')->createReply()->post()->wait();

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.Users.Actions

# A UPN can also be used as -UserId.
New-MgUserMessageReply -UserId $userId -MessageId $messageId

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

Python

# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python

result = await graph_client.me.messages.by_message_id('message-id').create_reply.post(None)

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

Response

The following example shows the response. Note: The response object shown here might be shortened for readability.

HTTP/1.1 200 OK
Content-type: application/json

{
  "receivedDateTime": "datetime-value",
  "sentDateTime": "datetime-value",
  "hasAttachments": true,
  "subject": "subject-value",
  "body": {
    "contentType": "",
    "content": "content-value"
  },
  "bodyPreview": "bodyPreview-value"
}

Example 2: Create a draft message in MIME format to reply to an existing message

Request

POST https://graph.microsoft.com/v1.0/me/messages/AAMkADA1MTAAAAqldOAAA=/createReply
Content-type: text/plain

RnJvbTogQWxleCBXaWxiZXIgPEFsZXhXQGNvbnRvc28uY29tPgpUbzogTWVnYW4gQm93ZW4gPE1l
Z2FuQkBjb250b3NvLmNvbT4KU3ViamVjdDogSW50ZXJuYWwgUmVzdW1lIFN1Ym1pc3Npb246IFNh
bGVzIEFzc29jaWF0ZQpUaHJlYWQtVG9waWM6IEludGVybmFsIFJlc3VtZSBTdWJtaXNzaW9uOiBT
YWxlcyBBc3NvY2lhdGUKVGhyZWFkLUluZGV4OiBjb2RlY29kZWNvZGVoZXJlaGVyZWhlcmUKRGF0
ZTogU3VuLCAyOCBGZWIgMjAyMSAwNzoxNTowMCA

Response

The following example shows 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."
    }
}