邮件群发工具（C#版）

引言

经常会参与组织一些社区活动，涉及到和不同的人进行交流，微信当然是必须的，同样邮件也是一种不可或缺的方式。

一般群发的邮件不是很友好，如果是一对一的，收到邮件的人是不是会比较重视，而且还有他的名字在里面。

所以抽点时间写了一个工具，使用C#做个发邮件的工具非常简单。

完整代码

class Program    {        private static string baseDir = "";        private static string email = "";        static void Main(string[] args)        {            Console.WriteLine("--- 开始执行 --- ");            baseDir = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;            email = ConfigurationManager.AppSettings["email"];            var date = DateTime.Now.ToString("yyyy-MM-dd");            FileStream fs = new FileStream($"{baseDir}\\[Log]{date}.txt", FileMode.Create);            StreamWriter sw = new StreamWriter(fs);            sw.WriteLine("===== 发送日志 =====");            List<Contact> contacts = GetContacts();            var smtpClient = GetSmtpClient();            foreach (var contact in contacts)            {                SendMail(smtpClient, contact, sw);            }            sw.WriteLine("===== 执行完成 =====");            sw.Flush();            sw.Close();            fs.Close();            Console.WriteLine("--- 执行完成 --- ");            Console.ReadLine();        }        private static SmtpClient GetSmtpClient()        {            string server = ConfigurationManager.AppSettings["server"];            string port = ConfigurationManager.AppSettings["port"];            string password = ConfigurationManager.AppSettings["password"];            SmtpClient smtpClient = new SmtpClient();            smtpClient.Host = server;            smtpClient.Port = Convert.ToInt32(port);            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;            smtpClient.EnableSsl = true;            smtpClient.Credentials = new NetworkCredential(email, password);            return smtpClient;        }        private static void SendMail(SmtpClient smtpClient, Contact contact, StreamWriter sw)        {            try            {                var mailMessage = GetMailMessage(contact);                smtpClient.Send(mailMessage);                Console.WriteLine($" --- 发送成功, Email = {contact.Email} --- ");                sw.WriteLine($" --- 发送成功, Email = {contact.Email} --- ");            }            catch (Exception ex)            {                Console.WriteLine($" === 发送失败, Email = {contact.Email} === ");                sw.WriteLine($" === 发送失败, Email = {contact.Email} === ");            }        }        private static MailMessage GetMailMessage(Contact contact)        {            string subject = ConfigurationManager.AppSettings["subject"];            string introduce = ConfigurationManager.AppSettings["introduce"];            string link = ConfigurationManager.AppSettings["link"];            string content = "<p style=\"font - size:16px\">Dear " + contact.Name + " , </p> " +                                 "<p style=\"font - size:16px\">" + introduce + "</p>"+                                 "<p style=\"font - size:16px\">报名链接：<a target=\"_blank\" href=\"" + link + "\">"+ link + "</a></p>"                                 + GetContent();            MailMessage mailMessage = new MailMessage(email, contact.Email);            mailMessage.Subject = subject;            mailMessage.Body = content;            mailMessage.BodyEncoding = Encoding.UTF8;            mailMessage.IsBodyHtml = true;            mailMessage.Priority = MailPriority.Normal;            return mailMessage;        }        private static string GetContent()        {            var dir = baseDir + "\\content.txt";            StreamReader sr = new StreamReader(dir, Encoding.UTF8);            string content = sr.ReadToEnd();            sr.Close();            return content;        }        private static List<Contact> GetContacts()        {            List<Contact> contacts = new List<Contact>();            var dir = baseDir + "\\contacts.txt";            StreamReader sr = new StreamReader(dir, Encoding.UTF8);            string line;            while ((line = sr.ReadLine()) != null)            {                line = line.Replace("，", ",");                var contact = line.Split(new[] {","}, StringSplitOptions.RemoveEmptyEntries);                if (contact.Length == 2 && !string.IsNullOrEmpty(contact[0]) && !string.IsNullOrEmpty(contact[1]))                {                    contacts.Add(new Contact() {Name = contact[0], Email = contact[1]});                }            }            sr.Close();            return contacts;        }        public class Contact        {            public string Name { get; set; }            public string Email { get; set; }        }    }

app.config

  <appSettings>    <add key="server" value="smtp.live.com" />    <add key="port" value="25" />    <add key="email" value="***@hotmail.com" />    <add key="password" value="" />    <add key="subject" value="敏捷个人北京2016年6月活动：玩转生涯狂想曲" />    <add key="introduce" value="欢迎参加敏捷个人北京2016年6月活动：玩转生涯狂想曲活动!" />    <add key="link" value="http://www.hdb.com/party/qz1eu?h_share_uid=f0bv" />  </appSettings>