通过C#通过Google Apps帐户发送电子邮件

Install-Package MailKit
Install-Package MimeKit

using System;
using MailKit.Net.Smtp;
using MimeKit;

namespace SendEmailThroughGoogleAppsAccount
{
    class Program
    {
        static void Main(string[] args)
        {
            // 设置发件人、收件人、抄送和密送地址
            string from = "your-email@your-domain.com";
            string to = "recipient@example.com";
            string cc = "cc@example.com";
            string bcc = "bcc@example.com";

            // 设置SMTP服务器信息
            string smtpServer = "smtp.gmail.com";
            int smtpPort = 587;
            string smtpUsername = "your-email@your-domain.com";
            string smtpPassword = "your-password";

            // 创建邮件消息
            var message = new MimeMessage();
            message.From.Add(new MailboxAddress("Your Name", from));
            message.To.Add(new MailboxAddress("Recipient", to));
            message.Cc.Add(new MailboxAddress("CC", cc));
            message.Bcc.Add(new MailboxAddress("BCC", bcc));
            message.Subject = "Test email through Google Apps account";

            var body = new TextPart("plain")
            {
                Text = "This is a test email sent through Google Apps account using C# code."
            };

            message.Body = body;

            // 连接到SMTP服务器并发送邮件
            using (var client = new SmtpClient())
            {
                client.Connect(smtpServer, smtpPort, false);
                client.Authenticate(smtpUsername, smtpPassword);
                client.Send(message);
                client.Disconnect(true);
            }
        }
    }
}