通过C#/Graph禁用MS Teams邀请邮件

using System;
using System.Threading.Tasks;
using Microsoft.Graph;
using Microsoft.Identity.Client;

namespace DisableTeamInvitations
{
    class Program
    {
        static async Task Main(string[] args)
        {
            string clientId = "YourClientId";
            string clientSecret = "YourClientSecret";
            string tenantId = "YourTenantId";
            string graphApiEndpoint = "https://graph.microsoft.com/";

            IConfidentialClientApplication app = ConfidentialClientApplicationBuilder
                .Create(clientId)
                .WithClientSecret(clientSecret)
                .WithAuthority($"https://login.microsoftonline.com/{tenantId}")
                .Build();

            string[] scopes = new string[] { "https://graph.microsoft.com/.default" };

            AuthenticationResult authResult = await app.AcquireTokenForClient(scopes).ExecuteAsync();
            string accessToken = authResult.AccessToken;

            GraphServiceClient graphClient = new GraphServiceClient(graphApiEndpoint, new DelegateAuthenticationProvider((requestMessage) =>
            {
                requestMessage.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
                return Task.FromResult(0);
            }));

            var teamsSettings = new TeamsSettings
            {
                AllowCreateUpdateChannels = false,
                AllowDeleteChannels = false
                // 更多的设置参数可以根据实际需求进行调整
            };

            await graphClient
                .Teams["<TeamId>"]
                .Request()
                .UpdateAsync(new Team
                {
                    MessagingSettings = teamsSettings
                });
        }
    }
}