跳过添加O365访客用户时的电子邮件验证

在添加O365访客用户时跳过电子邮件验证，可以使用Microsoft Graph API来实现。下面是一个示例代码，使用C#语言调用Microsoft Graph API来创建访客用户并跳过电子邮件验证。

using Microsoft.Graph;
using System;
using System.Net.Http.Headers;
using System.Threading.Tasks;

namespace SkipEmailValidation
{
    class Program
    {
        static async Task Main(string[] args)
        {
            // 设置Microsoft Graph API的访问令牌
            var accessToken = "YOUR_ACCESS_TOKEN";
            var graphClient = GetGraphClient(accessToken);

            // 创建访客用户
            var user = new User
            {
                DisplayName = "Guest User",
                GivenName = "Guest",
                Surname = "User",
                UserPrincipalName = "guestuser@yourdomain.onmicrosoft.com",
                PasswordProfile = new PasswordProfile
                {
                    ForceChangePasswordNextSignIn = true,
                    Password = "P@ssword123"
                },
                UsageLocation = "US",
                AccountEnabled = true,
                Identities = new[]
                {
                    new ObjectIdentity
                    {
                        SignInType = "emailAddress",
                        Issuer = "yourdomain.onmicrosoft.com",
                        IssuerAssignedId = "guestuser@yourdomain.onmicrosoft.com"
                    }
                }
            };

            // 跳过电子邮件验证
            user.AdditionalData = new System.Collections.Generic.Dictionary<string, object>
            {
                { "signInNames", new[] { new { type = "emailAddress", value = "guestuser@yourdomain.onmicrosoft.com" } } }
            };

            try
            {
                // 发送请求创建用户
                var createdUser = await graphClient.Users.Request().AddAsync(user);
                Console.WriteLine($"Created user: {createdUser.DisplayName}");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error creating user: {ex.Message}");
            }
        }

        static GraphServiceClient GetGraphClient(string accessToken)
        {
            // 创建Microsoft Graph API客户端
            var graphClient = new GraphServiceClient(new DelegateAuthenticationProvider((requestMessage) =>
            {
                requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
                return Task.CompletedTask;
            }));

            return graphClient;
        }
    }
}

请注意替换代码中的YOUR_ACCESS_TOKEN和yourdomain.onmicrosoft.com为你自己的访问令牌和域名。此代码使用Microsoft Graph SDK来进行API调用，并在创建访客用户时通过添加AdditionalData字段跳过了电子邮件验证。