邮件发送 emailsend .net开发

protected void Button1_Click(object sender, EventArgs e)
{
MailSender.Send("lizihong3@163.com", "产品邮件", "产品内容");
}

using System;

using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Configuration;
using System.Web;
using System.IO;
using System.Net;
using System.Net.Mail;

namespace Maticsoft.Common
{
public class MailSender
{
public static void Send(string server, string sender, string recipient, string subject,
string body, bool isBodyHtml, Encoding encoding, bool isAuthentication, params string[] files)
{
SmtpClient smtpClient = new SmtpClient(server);
MailMessage message = new MailMessage(sender, recipient);
message.IsBodyHtml = isBodyHtml;

message.SubjectEncoding = encoding;
message.BodyEncoding = encoding;

message.Subject = subject;
message.Body = body;

message.Attachments.Clear();
if (files != null && files.Length != 0)
{
for (int i = 0; i < files.Length; ++i)
{
Attachment attach = new Attachment(files[i]);
message.Attachments.Add(attach);
}
}

if (isAuthentication == true)
{
smtpClient.Credentials = new NetworkCredential(SmtpConfig.Create().SmtpSetting.User,
SmtpConfig.Create().SmtpSetting.Password);
}
smtpClient.Send(message);

}

public static void Send(string recipient, string subject, string body)
{
Send(SmtpConfig.Create().SmtpSetting.Server, SmtpConfig.Create().SmtpSetting.Sender, recipient, subject, body, true, Encoding.Default, true, null);
}

public static void Send(string Recipient, string Sender, string Subject, string Body)
{
Send(SmtpConfig.Create().SmtpSetting.Server, Sender, Recipient, Subject, Body, true, Encoding.UTF8, true, null);
}

static readonly string smtpServer = System.Configuration.ConfigurationManager.AppSettings["SmtpServer"];
static readonly string userName = System.Configuration.ConfigurationManager.AppSettings["UserName"];
static readonly string pwd = System.Configuration.ConfigurationManager.AppSettings["Pwd"];
static readonly int smtpPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SmtpPort"]);
static readonly string authorName = System.Configuration.ConfigurationManager.AppSettings["AuthorName"];
static readonly string to = System.Configuration.ConfigurationManager.AppSettings["To"];

public void Send(string subject, string body)
{

List<string> toList = StringPlus.GetSubStringList(StringPlus.ToDBC(to), ',');
OpenSmtp.Mail.Smtp smtp = new OpenSmtp.Mail.Smtp(smtpServer, userName, pwd, smtpPort);
foreach (string s in toList)
{
OpenSmtp.Mail.MailMessage msg = new OpenSmtp.Mail.MailMessage();
msg.From = new OpenSmtp.Mail.EmailAddress(userName, authorName);

msg.AddRecipient(s, OpenSmtp.Mail.AddressType.To);

//设置邮件正文,并指定格式为 html 格式
msg.HtmlBody = body;
//设置邮件标题
msg.Subject = subject;
//指定邮件正文的编码
msg.Charset = "gb2312";
//发送邮件
smtp.SendMail(msg);
}
}
}

public class SmtpSetting
{
private string _server;

public string Server
{
get { return _server; }
set { _server = value; }
}
private bool _authentication;

public bool Authentication
{
get { return _authentication; }
set { _authentication = value; }
}
private string _user;

public string User
{
get { return _user; }
set { _user = value; }
}
private string _sender;

public string Sender
{
get { return _sender; }
set { _sender = value; }
}
private string _password;

public string Password
{
get { return _password; }
set { _password = value; }
}
}

public class SmtpConfig
{
private static SmtpConfig _smtpConfig;
private string ConfigFile
{
get
{
string configPath = ConfigurationManager.AppSettings["SmtpConfigPath"];
if (string.IsNullOrEmpty(configPath) || configPath.Trim().Length == 0)
{
configPath = HttpContext.Current.Request.MapPath("/Config/SmtpSetting.config");
}
else
{
if (!Path.IsPathRooted(configPath))
configPath = HttpContext.Current.Request.MapPath(Path.Combine(configPath, "SmtpSetting.config"));
else
configPath = Path.Combine(configPath, "SmtpSetting.config");
}
return configPath;
}
}
public SmtpSetting SmtpSetting
{
get
{
XmlDocument doc = new XmlDocument();
doc.Load(this.ConfigFile);
SmtpSetting smtpSetting = new SmtpSetting();
smtpSetting.Server = doc.DocumentElement.SelectSingleNode("Server").InnerText;
smtpSetting.Authentication = Convert.ToBoolean(doc.DocumentElement.SelectSingleNode("Authentication").InnerText);
smtpSetting.User = doc.DocumentElement.SelectSingleNode("User").InnerText;
smtpSetting.Password = doc.DocumentElement.SelectSingleNode("Password").InnerText;
smtpSetting.Sender = doc.DocumentElement.SelectSingleNode("Sender").InnerText;

return smtpSetting;
}
}
private SmtpConfig()
{

}
public static SmtpConfig Create()
{
if (_smtpConfig == null)
{
_smtpConfig = new SmtpConfig();
}
return _smtpConfig;
}
}
}