使用 Microsoft graph API 工作帐户发送电子邮件

本文介绍了使用 Microsoft graph API 工作帐户发送电子邮件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

有谁知道如何通过没有登录用户运行的应用请求使用 Graph API 发送电子邮件的权限?

Does anyone know how to request permission to send emails using Graph API by an app that runs without a signed-in user?

我有一个有权使用 Microsoft Graph 发送电子邮件的 Azure WebApp.在 Azure 门户(Azure Active Directory -> 应用注册 -> MyApp - API 权限)中，我的应用已授予 Mail.Send 的权限(类型:应用程序:描述:以任何用户身份发送邮件).

I have an Azure WebApp with permission to send email using Microsoft Graph. In the Azure portal (Azure Active Directory -> App registrations -> MyApp - API permissions), my app has granted permission for Mail.Send( Type: Application : Description: Send mail as any user ).

在下一步中，我将邀请我单位的用户.在 Azure Ad 中，用户类型是来宾.我在该帐户上收到一封电子邮件以接受邀请.我可以通过 Microsoft 登录页面使用该帐户登录，但该帐户由我的组织管理 - 它不是我创建的帐户.

In the next step, I’m inviting a user from my organization. In Azure Ad the user type is Guest. I receive an email on that account to accept the invitation. I can log in with that account through the Microsoft login page but the account is managed by my organization – it is not an account created by me.

在 MS Graph explorer 中使用该帐户我可以发送电子邮件，但我想在未登录的情况下从我的应用程序中执行相同操作.目的是仅使用此帐户发送电子邮件.

Using that account with MS Graph explorer I’m able to send an email, but I want to do the same from my application without been logged in. The purpose is to use this account only for sending emails.

我能够获取访问令牌、使用 API 并获取用户基本信息，但是当我尝试发送电子邮件时出现异常:

I was able to get the access token, use the API and get user basic info, but I get an exception when I'm trying to send an email:

代码:ResourceNotFound

Code: ResourceNotFound

消息:无法发现资源.

// get token
var authContext =
    new AuthenticationContext("https://login.microsoftonline.com/" + tenantID);

var result = await authContext
    .AcquireTokenAsync("https://graph.microsoft.com", new ClientCredential(clientId, secret));

// create graph service
GraphServiceClient graphServiceClientApp =
    new GraphServiceClient("https://graph.microsoft.com/v1.0",
        new DelegateAuthenticationProvider(
            async(requestMessage) =>
            {
                requestMessage.Headers.Authorization =
                    new AuthenticationHeaderValue("bearer", result.AccessToken);
            }));

// create message obj
//.....

// send email
await graphServiceClientApp.Users["f5521fbc-481e-4e90-9166-33a64eb8f7e9"]
    .SendMail(message, false)
    .Request()
    .PostAsync();

f5521fbc-481e-4e90-9166-33a64eb8f7e9 等用户 ID 取自 azure 门户，在用户详细信息中有一个 Object ID 字段

The user ID like f5521fbc-481e-4e90-9166-33a64eb8f7e9 is taken from azure portal, in user details there is a Object ID field

使用 Microsoft graph API 工作帐户发送电子邮件

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