asp.net发送邮件

【实例简介】

asp.net发送邮件
【实例截图】
【核心代码】

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net.Mail;
using System.Text;
using System.IO;
public partial class Sender : System.Web.UI.Page
{
 //该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
    protected void Page_Load(object sender, EventArgs e)
    {
    }
 protected void NewBtn_Click(object sender,EventArgs e)
 {
  int nContain = 0;
  ///添加发件人地址
  string from = "support@51aspx.com";
  MailMessage mailMsg = new MailMessage();
  mailMsg.From = new MailAddress(from);
  nContain = mailMsg.From.Address.Length;
  ///添加收件人地址
  string split = ";";
  string[] toList = To.Text.Trim().Split(split.ToCharArray());
  for(int i = 0; i < toList.Length; i )
  {
   mailMsg.To.Add(toList[i].Trim());
  }
  nContain = To.Text.Length;
  ///添加抄送地址；
  string[] ccList = CC.Text.Trim().Split(split.ToCharArray());
  for(int i = 0; i < ccList.Length; i )
  {
   if(ccList[i].Trim().Length > 0)
   {
    mailMsg.CC.Add(ccList[i].Trim());
   }
  }
  nContain = CC.Text.Length;
  ///添加邮件主题
  mailMsg.Subject = Title.Text.Trim();
  mailMsg.SubjectEncoding = Encoding.UTF8;
  nContain = mailMsg.Subject.Length;
  ///添加邮件内容
  mailMsg.Body = Body.Text;
  mailMsg.BodyEncoding = Encoding.UTF8;
  mailMsg.IsBodyHtml = HtmlCB.Checked;
  nContain = mailMsg.Body.Length;
  ///添加邮件附件  
  HttpFileCollection fileList = HttpContext.Current.Request.Files;
  for(int i = 0; i < fileList.Count; i )
  {   ///添加单个附件
   HttpPostedFile file = fileList[i];
   if(file.FileName.Length <= 0 || file.ContentLength <= 0)
   {
    break;
   }
   Attachment attachment = new Attachment(file.FileName);   
   mailMsg.Attachments.Add(attachment);
   nContain = file.ContentLength;
  }
  if(mailMsg.IsBodyHtml == true)
  {
   nContain = 100;
  }
  try
  {   ///发送邮件
   IMail mail = new Mail();
   mail.SenderMail(mailMsg);
   ///保存发送的邮件
   int nMailID = mail.SaveAsMail(mailMsg.Subject,mailMsg.Body,from,
    To.Text.Trim(),CC.Text.Trim(),mailMsg.IsBodyHtml,
    nContain,mailMsg.Attachments.Count > 0 ? true : false);
   
   if(nMailID > 0)
   {   ///保存发送邮件的附件
    for(int i = 0; i < fileList.Count; i )
    {   ///添加单个附件
     HttpPostedFile file = fileList[i];
     if(file.FileName.Length <= 0 || file.ContentLength <= 0)
     {
      break;
     }
     ///保存附件到硬盘中
     file.SaveAs(MapPath("MailAttachments/" Path.GetFileName(file.FileName)));
     ///保存发送邮件的附件
     mail.SaveAsMailAttachment(
      Path.GetFileName(file.FileName),
      "MailAttachments/" Path.GetFileName(file.FileName),
      file.ContentType,
      file.ContentLength,
      nMailID);
    }
   }   
  }
  catch(Exception ex)
  {   ///跳转到异常错误处理页面
   Response.Redirect("ErrorPage.aspx?ErrorMsg=" ex.Message.Replace("<br>","").Replace("\n","")
     "&ErrorUrl=" Request.Url.ToString().Replace("<br>","").Replace("\n",""));
  }
  Response.Redirect("~/MailDesktop.aspx");
 }
 protected void ReturnBtn_Click(object sender,EventArgs e)
 {   ///返回到邮件列表页面
  Response.Redirect("~/MailDesktop.aspx");
 } 
}