System.Net.Mail 邮件发送示例

前言：OA自动发送邮件的程序不好使，SQL Server 存储过程邮件发送程序好使，但是不利于标准化和维护，于是觉得是适合找些“轮子”武装一下。想起之前学习过System.Net.Mail ，于是再次重温一下。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Mail;
using DevComponents.DotNetBar;

namespace SendMailSystem
{
    class MailSendClass
    {
        string mto;            //收件人地址
        string mfrom;          //发件人地址
        string mtitle;         //邮件标题
        string mbody;          //邮件内容
        string msmtp;          //SMTP地址
        string msmtpuid;       //发件人用户名
        string msmtppwd;       //发件人密码
        string mattach;        //附件内容

        /// <summary>
        /// 邮件发送参数值
        /// </summary>
        /// <param name="mailto">收件人地址</param>
        /// <param name="mailfrom">发件人地址</param>
        /// <param name="mailtitle">邮件标题</param>
        /// <param name="mailbody">邮件内容</param>
        /// <param name="mailattch">附件内容</param>
        /// <param name="smtp">SMTP地址</param>
        /// <param name="smtpuid">发件人用户名</param>
        /// <param name="smtppwd">发件人密码</param>
        public void MailSend(string mailto, string mailfrom, string mailtitle, string mailbody,string mailattch,string smtp, string smtpuid, string smtppwd)
        {
            mto = mailto;
            mfrom = mailfrom;
            mtitle = mailtitle;
            mbody = mailbody;
            msmtp = smtp;
            msmtpuid = smtpuid;
            msmtppwd = smtppwd;
            mattach = mailattch;
        }

        public void mSend()
        {
            SmtpClient client = new SmtpClient(msmtp); //实例化 Smtp发送服务器 类
            client.DeliveryMethod = SmtpDeliveryMethod.Network; //通过远程SMTP服务器传送邮件，这里的network表示你要使用的远程SMTP服务器。
            client.UseDefaultCredentials = true; //Smtp服务器需要验证
            client.Credentials = new NetworkCredential(msmtpuid, msmtppwd); //验证 发件人账号和密码

            //MailMessage mmsg = new MailMessage(new MailAddress(mfrom), new MailAddress(mto)); //单个发送时
            MailMessage mmsg = new MailMessage(); //实例化 Smtp客户端 类

            mmsg.Priority = MailPriority.High;//邮件优先级
            mmsg.From = ));//收件方看到的邮件来源，可以修改接收地址

            //mmsg.CC.Add(mto);//邮件的抄送者，支持群发，多个邮件地址之间用 半角逗号 分开
            mmsg.To.Add(mto); //邮件的收件者
            mmsg.Subject = mtitle; //邮件标题
            mmsg.SubjectEncoding = Encoding.UTF8;
            mmsg.Body = mbody;   //正文
            mmsg.IsBodyHtml = true; //邮件正文是否是HTML格式
            mmsg.BodyEncoding = Encoding.UTF8;
            mmsg.IsBodyHtml = true;

            if (mattach != "")
            {
                , mattach.ToString().Length - ).Split(',');
                ; i < arrayS.Length; i++)
                {
                    mmsg.Attachments.Add(new Attachment(arrayS[i].ToString()));
                }
            }
            try
            {
                client.Send(mmsg);
                MessageBoxEx.Show("邮件发送成功!");
            }
            catch (Exception e)
            {
                MessageBoxEx.Show("邮件发送失败：\n" + e.Message);
            }
        }
    }
}

Class Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevComponents.DotNetBar;

namespace SendMailSystem
{
    public partial class Form1 :   Office2007Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void buttonX1_Click(object sender, EventArgs e)
        {
            MailSendClass classl = new MailSendClass();
            string mailaddress = "";
            )
            {
                ; i < listBox1.Items.Count; i ++ )
                {
                    mailaddress += listBox1.Items[i].ToString() + ",";
                }
            }
            classl.MailSend(mailto1.Text, mailfrom1.Text, mailtitle1.Text, mailbody1.Text, mailaddress, smtp1.Text, smtpuid1.Text, smtppwd1.Text);
            classl.mSend();
        }

        private void buttonX2_Click(object sender, EventArgs e)
        {

                string resultFile = "";

                OpenFileDialog openFileDialog1 = new OpenFileDialog();
                openFileDialog1.InitialDirectory = "D:\\Patch";
                openFileDialog1.Filter = "All files (*.*)|*.*";
                openFileDialog1.FilterIndex = ;
                openFileDialog1.RestoreDirectory = true;
                if (openFileDialog1.ShowDialog() == DialogResult.OK)
                    resultFile = openFileDialog1.FileName;

                if (resultFile != "")
             {
                //mattach1.Text += resultFile + ",";
                listBox1.Items.Add(resultFile);
             }

            //ListViewItem li = new ListViewItem();
            //li.Text = resultFile;
            //li.SubItems.Add(resultFile);
            //listViewEx1.Items.Add(li);

        }

        private void buttonX3_Click(object sender, EventArgs e)
        {
            //if (mattach1.Text.ToString() != "")
            //{
            //string[] arrayS = mattach1.Text.ToString().Substring(0, mattach1.Text.ToString().Length-1).Split(',');
            //for (int i = 0; i < arrayS.Length; i++)
            //{
            //    MessageBoxEx.Show(arrayS[i].ToString());
            //}
            //}

            )
            {
              string mailaddress = "";
              )
              {
                ; i < listBox1.Items.Count; i++)
                {
                    mailaddress += listBox1.Items[i].ToString() + ",";
                }
               }
               MessageBoxEx.Show(mailaddress);
            }
        }

        private void buttonX4_Click(object sender, EventArgs e)
        {
            )
            {
                )
                {
                listBox1.Items.RemoveAt(listBox1.SelectedIndex);
                }
            }
        }

        private void buttonX5_Click(object sender, EventArgs e)
        {
            )
            {
                listBox1.Items.Clear();
            }
        }
    }
}

最后，上图。