ASP.NET2.0邮件群发

首先添加命名空间

using System.Net.Mail;

using System.Data.SqlClient;

代码其实很简单，当然我这个功能比较简单

就是一个单击事件

protected void btn_send_Click(object sender, EventArgs e)
    ...{
         MailMessage message = new MailMessage();
        //获取发送者地址
         message.From = new MailAddress(tbx_address.Text.Trim());
        //获取主题
         message.Subject = tbx_subject.Text.Trim();
        //获取发送邮件主题
         message.Body = we_content.Text.Trim();
         message.IsBodyHtml = true;
        //设置数据库链接
         SqlConnection conn = new SqlConnection(getstring());
         conn.Open();
        //数据查询用的是存储过程
         SqlCommand cmd = new SqlCommand("SelectEmail", conn);
         cmd.CommandType = CommandType.StoredProcedure;
         SqlParameter dutyparameter = cmd.Parameters.Add("@MemberDuty", SqlDbType.NVarChar, 20);
         dutyparameter.Value = ddl_selectemail.SelectedValue;
         SqlDataReader dr = cmd.ExecuteReader();
        //执行查询获得要发往的邮件地址
        while (dr.Read())
        ...{
             message.To.Add(dr["MemberEmail"].ToString());
           
         }
         conn.Close();
         SmtpClient client = new SmtpClient();
         client.Send(message);
         lbl_info.Visible = true;
         lbl_info.Text = "发送成功";
       
     }

另外在web。config设置发送邮件的远程服务器连接

代码如下

<system.net>
  <mailSettings>
    <smtp>
      <network host="smtp.163.com" port="25" userName="你的163帐号" password="你的密码" />
      </smtp>
    </mailSettings>
  </system.net>