邮件发送

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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Configuration;namespace TCEEmail{    class Program    {        static void Main(string[] args)        {            //接收者的邮件地址            string strReceivers = ConfigurationManager.AppSettings["receiver"].ToString();            string[] ArrMailto = strReceivers.Split(';');            //抄送者的邮件地址            string strCopytos = ConfigurationManager.AppSettings["copyto"].ToString();            string[] ArrMailcc = strCopytos.Split(';');            string Content = "this is the test";            EmailHelp.SendEmail(Content, ArrMailto, ArrMailcc);            Console.ReadKey();        }    }}

发送类：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net.Mail;using System.IO;using System.Text.RegularExpressions;namespace TCEEmail{    class EmailHelp    {        /// <summary>        /// 邮件发送程序        /// </summary>        /// <param name="strbody">发送的主体信息</param>        /// <param name="ArrMailTo">接收人</param>        /// <param name="ArrMailCc">抄送</param>       public static void SendEmail(string strbody, string[] ArrMailTo, string[] ArrMailCc)        {            try            {                int Port = 587;                int.TryParse(System.Configuration.ConfigurationManager.AppSettings["Port"].ToString(), out Port);                string Email = System.Configuration.ConfigurationManager.AppSettings["Email"].ToString();                string EmailPwd = System.Configuration.ConfigurationManager.AppSettings["EmailPwd"].ToString();                string Smtp = System.Configuration.ConfigurationManager.AppSettings["Smtp"].ToString();                //验证是否为正确的邮件地址                Regex regMail = new Regex(@"^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$");                MailMessage mail = new MailMessage();                SmtpClient SmtpServer = new SmtpClient(Smtp);                mail.From = new MailAddress(Email);                foreach (var item in ArrMailTo)                {                    if (regMail.Match(item).Success)                    {                        mail.To.Add(item);                    }                }                foreach (var item in ArrMailCc)                {                    if (regMail.Match(item).Success)                    {                        mail.CC.Add(item);                    }                }                mail.Subject = "xxxxxx";                if (strbody.Equals(""))                {                    mail.Body = DateTime.Today.ToLocalTime().ToString() + "—" + DateTime.Now.ToString() + "xxxxxxx";                }                else                {                    mail.Body = strbody;                }                mail.BodyEncoding = Encoding.Default;                //发送优先级                mail.Priority = MailPriority.High;                                           SmtpServer.Credentials = new System.Net.NetworkCredential(Email, EmailPwd);                SmtpServer.EnableSsl = true;                SmtpServer.Send(mail);                Console.WriteLine("Mail sent successfully");                ErrorLog("SendmailLog" + ".txt", "【" + string.Format("{0:yyyy-MM-dd HH:mm:ss}", DateTime.Now) + "】：Mail sent successfully");            }            catch (Exception ex)            {                Console.WriteLine("the mail sends out the failure：" + ex.ToString());                ErrorLog("SendmailLog" + ".txt", "【" + string.Format("{0:yyyy-MM-dd HH:mm:ss}", DateTime.Now) + "】：the mail sends out the failure \n" + ex.ToString());            }        }        /// <summary>        /// record the error log        /// </summary>        /// <param name="FileName">file name of log</param>        /// <param name="FileContent">error information</param>        private static void ErrorLog(string FileName, string FileContent)        {            try            {                string strPath = System.IO.Directory.GetCurrentDirectory() + "\\Log";                if (!Directory.Exists(strPath))                {                    // Create the directory it does not exist.                     Directory.CreateDirectory(strPath);                }                if (FileName.IndexOf("/") != -1)                {                    FileName = FileName.Replace("/", "-");                }                string strLogName = strPath + "\\" + FileName;                FileInfo LogFile = new FileInfo(strLogName);                StreamWriter TextFile = LogFile.AppendText();                //如果日志文件大于50M                 if (LogFile.Length < 50000000)                {                    TextFile.WriteLine(FileContent);                }                TextFile.Close();            }            catch (Exception e)            {                Console.WriteLine(e.ToString());            }        }    }}

配置文件：

<?xml version="1.0" encoding="utf-8" ?><configuration>  <appSettings>    <!--接收人邮箱-->    <add key="receiver" value="xxx@google.com"/>    <!--抄送的邮箱-->    <add key="copyto" value="xxx@google.com;"/>    <!--Mail参数-->    <add key ="Email" value="xxx@google.com"/>    <add key ="EmailPwd" value="123456"/>    <add key ="Smtp" value="smtp.gmail.com"/>    <add key ="Port" value="587"/>  </appSettings></configuration>