C# 邮件发送
我直接上图 上代码吧。
代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
using System.IO;
namespace SendMailExample
{
/// <summary>
/// 作者：Andrew
/// Blog: http://blog.csdn.net/Andrew_wx
/// </summary>
public partial class FormSendMail : Form
{
public FormSendMail()
{
InitializeComponent();
}
private void FormSendMail_Load( object sender, EventArgs e)
{
txtSmtpServer.Text = " smtp.qq.com " ;
txtSend.Text = " heuandmei@qq.com " ;
txtDisplayName.Text = " Andrew(王旭) " ;
txtPassword.Text = "" ; // 密码
txtReceive.Text = " heuandmei@qq.com " ;
txtTitle.Text = " 发信测试 " ;
txtBody.Text = " This is a test(测试) " ;
rbtnNoSSL.Checked = true ;
}
private void btnAddFiles_Click( object sender, EventArgs e)
{
OpenFileDialog odlg = new OpenFileDialog();
odlg.CheckFileExists = true ;
// 只接收有效的文件名
odlg.ValidateNames = true ;
// 允许一次选择多个文件作为附件
odlg.Multiselect = true ;
if (odlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
lstFiles.Items.AddRange(odlg.FileNames);
}
}
private void btnSend_Click( object sender, EventArgs e)
{
this .Cursor = Cursors.WaitCursor;
MailMessage mail = new MailMessage();
mail.From = new MailAddress(
txtSend.Text, txtDisplayName.Text, Encoding.UTF8);
mail.To.Add(txtReceive.Text);
mail.Subject = txtTitle.Text;
mail.SubjectEncoding = Encoding.Default;
mail.Body = txtBody.Text;
mail.BodyEncoding = Encoding.Default;
mail.IsBodyHtml = false ;
mail.Priority = MailPriority.Normal;
// 添加附件
Attachment attachment = null ;
if (lstFiles.Items.Count > 0 )
{
for ( int i = 0 ; i < lstFiles.Items.Count; i++)
{
string pathFileName = lstFiles.Items[i].ToString();
string extName = Path.GetExtension(pathFileName).ToLower();
// 判断附件类型
if (extName == " .rar " || extName == " .zip " )
{
attachment = new Attachment(pathFileName, MediaTypeNames.Application.Zip);
}
else
{
attachment = new Attachment(pathFileName, MediaTypeNames.Application.Octet);
}
ContentDisposition cd = attachment.ContentDisposition;
cd.CreationDate = File.GetCreationTime(pathFileName);
cd.ModificationDate = File.GetLastWriteTime(pathFileName);
cd.ReadDate = File.GetLastAccessTime(pathFileName);
mail.Attachments.Add(attachment);
}
}
SmtpClient client = new SmtpClient();
client.Host = txtSmtpServer.Text;
client.Port = 25 ;
// 是否使用安全套接字层加密连接
client.EnableSsl = rbtnUseSSL.Checked;
// 不使用默认凭证，注意此句必须放在 client.Credentials 的上面
client.UseDefaultCredentials = false ;
client.Credentials = new NetworkCredential(txtSend.Text, txtPassword.Text);
// 邮件通过网络直接发送到服务器
client.DeliveryMethod = SmtpDeliveryMethod.Network;
try
{
client.Send(mail);
MessageBox.Show( " 发送成功 " );
}
catch (SmtpException ex)
{
MessageBox.Show( " 发送失败： " + ex.Message);
}
catch (Exception ex)
{
MessageBox.Show( " 发送失败： " + ex.Message);
}
finally
{
mail.Dispose();
client = null ;
this .Cursor = Cursors.Default;
}
}
}
}
以上是完整代码。
项目包下载地址： https://files.cnblogs.com/andrew-blog/SendMailExample.rar
作者： Leo_wl
出处： http://www.cnblogs.com/Leo_wl/
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