邮件发送

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>


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