基于 .NET 2.0 System.Net.Mail namespace 的邮件发送组件
Posted on 2006-05-17 13:11 阿武 阅读(10287) 评论(44) 编辑 收藏 举报
一个基于 .NET 2.0 System.Net.Mail namespace 的邮件发送接收组件，参考了以前网上一些基于 System.Web.Mail namespace 例子。
/**//********************************************
*
* description: 基于 .NET 2.0 System.Net.Mail namespace
* 的邮件发送接收组件
*
* author: yyw84
*
* blogs: http://yyw84.cnblogs.com/
*
* Date: 2006-5-4
*
********************************************/
using System;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
using System.Threading;
using System.Net.Sockets;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Net.Configuration;
using System.Configuration;
namespace Mailer.Components
{
邮件接收类#region 邮件接收类
/**//// <summary>
/// 邮件接收类
/// </summary>
public class POP3
{
Fields#region Fields
string POPServer;
string mPOPUserName;
string mPOPPass;
int mPOPPort;
NetworkStream ns;
StreamReader sr;
#endregion
Constructors#region Constructors
/**//// <summary>
/// POP3
/// </summary>
/// <param name="server">POP3服务器名称</param>
/// <param name="userName">用户名</param>
/// <param name="password">用户密码</param>
public POP3(string server, string userName, string password)
: this(server, 110, userName, password)
{
}
/**//// <summary>
/// POP3
/// </summary>
/// <param name="server">POP3服务器名称</param>
/// <param name="port">端口号</param>
/// <param name="userName">用户名</param>
/// <param name="password">用户密码</param>
public POP3(string server, int port, string userName, string password)
{
POPServer = server;
mPOPUserName = userName;
mPOPPass = password;
mPOPPort = port;
}
#endregion
Methods#region Methods
Public#region Public
/**//// <summary>
/// 获得新邮件数量
/// </summary>
/// <returns>新邮件数量</returns>
public int GetNumberOfNewMessages()
{
byte[] outbytes;
string input;
try
{
Connect();
input = "stat" + "\r\n";
outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
string resp = sr.ReadLine();
string[] tokens = resp.Split(new Char[] { ' ' });
Disconnect();
return Convert.ToInt32(tokens[1]);
}
catch
{
return -1;
}
}
/**//// <summary>
/// 获取新邮件内容
/// </summary>
/// <param name="subj">邮件主题</param>
/// <returns>新邮件内容</returns>
public List<MailMessage> GetNewMessages(string subj)
{
int newcount;
List<MailMessage> newmsgs = new List<MailMessage>();
try
{
newcount = GetNumberOfNewMessages();
Connect();
for (int n = 1; n < newcount + 1; n++)
{
List<string> msglines = GetRawMessage(n);
string msgsubj = GetMessageSubject(msglines);
if (msgsubj.CompareTo(subj) == 0)
{
MailMessage msg = new MailMessage();
msg.Subject = msgsubj;
msg.From = new MailAddress(GetMessageFrom(msglines));
msg.Body = GetMessageBody(msglines);
newmsgs.Add(msg);
DeleteMessage(n);
}
}
Disconnect();
return newmsgs;
}
catch (Exception e)
{
return newmsgs;
}
}
/**//// <summary>
/// 获取新邮件内容
/// </summary>
/// <param name="nIndex">新邮件索引</param>
/// <returns>新邮件内容</returns>
public MailMessage GetNewMessages(int nIndex)
{
int newcount;
MailMessage msg = new MailMessage();
try
{
newcount = GetNumberOfNewMessages();
Connect();
int n = nIndex + 1;
if (n < newcount + 1)
{
List<string> msglines = GetRawMessage(n);
string msgsubj = GetMessageSubject(msglines);
msg.Subject = msgsubj;
msg.From = new MailAddress(GetMessageFrom(msglines));
msg.Body = GetMessageBody(msglines);
}
Disconnect();
return msg;
}
catch
{
return null;
}
}
#endregion
Private#region Private
private bool Connect()
{
TcpClient sender = new TcpClient(POPServer, mPOPPort);
byte[] outbytes;
string input;
try
{
ns = sender.GetStream();
sr = new StreamReader(ns);
sr.ReadLine();
input = "user " + mPOPUserName + "\r\n";
outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
sr.ReadLine();
input = "pass " + mPOPPass + "\r\n";
outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
sr.ReadLine();
return true;
}
catch
{
return false;
}
}
private void Disconnect()
{
string input = "quit" + "\r\n";
Byte[] outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
ns.Close();
}
private List<string> GetRawMessage(int messagenumber)
{
Byte[] outbytes;
string input;
string line = "";
input = "retr " + messagenumber.ToString() + "\r\n";
outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
List<string> msglines = new List<string>();
do
{
line = sr.ReadLine();
msglines.Add(line);
} while (line != ".");
msglines.RemoveAt(msglines.Count - 1);
return msglines;
}
private string GetMessageSubject(List<string> msglines)
{
string[] tokens;
IEnumerator msgenum = msglines.GetEnumerator();
while (msgenum.MoveNext())
{
string line = (string)msgenum.Current;
if (line.StartsWith("Subject:"))
{
tokens = line.Split(new Char[] { ' ' });
return tokens[1].Trim();
}
}
return "None";
}
private string GetMessageFrom(List<string> msglines)
{
string[] tokens;
IEnumerator msgenum = msglines.GetEnumerator();
while (msgenum.MoveNext())
{
string line = (string)msgenum.Current;
if (line.StartsWith("From:"))
{
tokens = line.Split(new Char[] { '<' });
return tokens[1].Trim(new Char[] { '<', '>' });
}
}
return "None";
}
private string GetMessageBody(List<string> msglines)
{
string body = "";
string line = " ";
IEnumerator msgenum = msglines.GetEnumerator();
while (line.CompareTo("") != 0)
{
msgenum.MoveNext();
line = (string)msgenum.Current;
}
while (msgenum.MoveNext())
{
body = body + (string)msgenum.Current + "\r\n";
}
return body;
}
private void DeleteMessage(int messagenumber)
{
Byte[] outbytes;
string input;
try
{
input = "dele " + messagenumber.ToString() + "\r\n";
outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
}
catch (Exception e)
{
return;
}
}
#endregion
#endregion
}
#endregion
邮件发送类#region 邮件发送类
public class SMTP
{
Fields#region Fields
private string mMailFrom;
private string mMailDisplyName;
private string[] mMailTo;
private string[] mMailCc;
private string[] mMailBcc;
private string mMailSubject;
private string mMailBody;
private string[] mMailAttachments;
private string mSMTPServer;
private int mSMTPPort;
private string mSMTPUsername;
private string mSMTPPassword;
private bool mSMTPSSL;
private MailPriority mPriority = MailPriority.Normal;
private bool mIsBodyHtml = false;
private MailMessage MailObject;
bool mailSent = false;
#endregion
Properties#region Properties
/**//// <summary>
/// 发件人地址
/// </summary>
public string MailFrom
{
set { mMailFrom = value; }
get { return mMailFrom; }
}
/**//// <summary>
/// 显示的名称
/// </summary>
public string MailDisplyName
{
set { mMailDisplyName = value; }
get { return mMailDisplyName; }
}
/**//// <summary>
/// 收件人地址
/// </summary>
public string[] MailTo
{
set { mMailTo = value; }
get { return mMailTo; }
}
/**//// <summary>
/// 抄送
/// </summary>
public string[] MailCc
{
set { mMailCc = value; }
get { return mMailCc; }
}
/**//// <summary>
/// 密件抄送
/// </summary>
public string[] MailBcc
{
set { mMailBcc = value; }
get { return mMailBcc; }
}
/**//// <summary>
/// 邮件主题
/// </summary>
public string MailSubject
{
set { mMailSubject = value; }
get { return mMailSubject; }
}
/**//// <summary>
/// 邮件正文
/// </summary>
public string MailBody
{
set { mMailBody = value; }
get { return mMailBody; }
}
/**//// <summary>
/// 附件
/// </summary>
public string[] MailAttachments
{
set { mMailAttachments = value; }
get { return mMailAttachments; }
}
/**//// <summary>
/// SMTP 服务器
/// </summary>
public string SMTPServer
{
set { mSMTPServer = value; }
get { return mSMTPServer; }
}
/**//// <summary>
/// 发送端口号(默认为 25)
/// </summary>
public int SMTPPort
{
set { mSMTPPort = value; }
get { return mSMTPPort; }
}
/**//// <summary>
/// 用户名
/// </summary>
public string SMTPUsername
{
set { mSMTPUsername = value; }
get { return mSMTPUsername; }
}
/**//// <summary>
/// 密码
/// </summary>
public string SMTPPassword
{
set { mSMTPPassword = value; }
get { return mSMTPPassword; }
}
/**//// <summary>
/// 是否使用安全套接字层 (SSL) 加密连接
/// 默认为 false
/// </summary>
public Boolean SMTPSSL
{
set { mSMTPSSL = value; }
get { return mSMTPSSL; }
}
/**//// <summary>
/// 邮件的优先级
/// </summary>
public MailPriority Priority
{
get { return mPriority; }
set { mPriority = value; }
}
/**//// <summary>
/// 示邮件正文是否为 Html 格式的值
/// </summary>
public bool IsBodyHtml
{
get { return mIsBodyHtml; }
set { mIsBodyHtml = value; }
}
#endregion
Constructors#region Constructors
/**//// <summary>
/// 邮件发送类
/// 主机信息从配置文件中获取
/// 参考:ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.NETDEVFX.v20.chs/dv_fxgenref/html/54f0f153-17e5-4f49-afdc-deadb940c9c1.htm
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="mailTo">收件人地址</param>
/// <param name="mailSubject">邮件主题</param>
/// <param name="mailBody">邮件正文</param>
public SMTP(string[] mailTo, string mailSubject, string mailBody)
{
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
MailSettingsSectionGroup mailSettings = NetSectionGroup.GetSectionGroup(config).MailSettings;
MailObject = new MailMessage();
mMailFrom = mailSettings.Smtp.From;
mMailDisplyName = mailSettings.Smtp.From;
mMailTo = mailTo;
mMailCc = null;
mMailBcc = null;
mMailSubject = mailSubject;
mMailBody = mailBody;
mMailAttachments = null;
mSMTPServer = mailSettings.Smtp.Network.Host;
mSMTPPort = mailSettings.Smtp.Network.Port;
mSMTPUsername = mailSettings.Smtp.Network.UserName;
mSMTPPassword = mailSettings.Smtp.Network.Password;
mSMTPSSL = false;
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="mailTo">收件人地址</param>
/// <param name="mailSubject">邮件主题</param>
/// <param name="mailBody">邮件正文</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
public SMTP(string mailFrom, string[] mailTo, string mailSubject, string mailBody,
string smtpServer, string userName, string password)
: this(mailFrom, mailFrom, mailTo, mailSubject, mailBody, null, smtpServer, userName, password)
{
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="displayName">显示的名称</param>
/// <param name="mailTo">收件人地址</param>
/// <param name="mailSubject">邮件主题</param>
/// <param name="mailBody">邮件正文</param>
/// <param name="attachments">附件,多个时用逗号隔开(可为空)</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
public SMTP(string mailFrom, string[] mailTo, string mailSubject, string mailBody,
string[] attachments, string smtpServer, string userName, string password)
: this(mailFrom, mailFrom, mailTo, mailSubject, mailBody,
attachments, smtpServer, userName, password)
{
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="displayName">显示的名称</param>
/// <param name="mailTo">收件人地址</param>
/// <param name="mailSubject">邮件主题</param>
/// <param name="mailBody">邮件正文</param>
/// <param name="attachments">附件,多个时用逗号隔开(可为空)</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
public SMTP(string mailFrom, string displayName, string[] mailTo, string mailSubject, string mailBody,
string[] attachments, string smtpServer, string userName, string password)
: this(mailFrom, displayName, mailTo, null, null, mailSubject, mailBody,
attachments, smtpServer, 25, userName, password, false)
{
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="displayName">显示的名称</param>
/// <param name="mailTo">收件人地址</param>
/// <param name="mailCc">抄送,多个收件人用逗号隔开(可为空)</param>
/// <param name="mailBcc">密件抄送,多个收件人用逗号隔开(可为空)</param>
/// <param name="mailSubject">邮件主题</param>
/// <param name="mailBody">邮件正文</param>
/// <param name="attachments">附件,多个时用逗号隔开(可为空)</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="smtpPort">发送端口号(默认为 25)</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
/// <param name="smtpSsl">是否使用安全套接字层 (SSL) 加密连接</param>
public SMTP(string mailFrom, string displayName, string[] mailTo, string[] mailCc, string[] mailBcc, string mailSubject, string mailBody,
string[] attachments, string smtpServer, int smtpPort, string userName, string password, bool smtpSsl)
{
MailObject = new MailMessage();
mMailFrom = mailFrom;
mMailDisplyName = displayName;
mMailTo = mailTo;
mMailCc = mailCc;
mMailBcc = mailBcc;
mMailSubject = mailSubject;
mMailBody = mailBody;
mMailAttachments = attachments;
mSMTPServer = smtpServer;
mSMTPPort = smtpPort;
mSMTPUsername = userName;
mSMTPPassword = password;
mSMTPSSL = smtpSsl;
}
#endregion
Methods#region Methods
/**//// <summary>
/// 同步发送邮件
/// </summary>
/// <returns></returns>
public Boolean Send()
{
return SendMail(false, null);
}
/**//// <summary>
/// 异步发送邮件
/// </summary>
/// <param name="userState">异步任务的唯一标识符</param>
/// <returns></returns>
public void SendAsync(object userState)
{
SendMail(true, userState);
}
/**//// <summary>
/// 发送邮件
/// </summary>
/// <param name="isAsync">是否异步发送邮件</param>
/// <param name="userState">异步任务的唯一标识符，当 isAsync 为 True 时必须设置该属性， 当 isAsync 为 False 时可设置为 null</param>
/// <returns></returns>
private Boolean SendMail(bool isAsync, object userState)
{
设置属性值#region 设置属性值
string[] mailTos = mMailTo;
string[] mailCcs = mMailCc;
string[] mailBccs = mMailBcc;
string[] attachments = mMailAttachments;
// build the email message
MailMessage Email = new MailMessage();
MailAddress MailFrom =
new MailAddress(mMailFrom, mMailDisplyName);
Email.From = MailFrom;
if (mailTos != null)
{
foreach (string mailto in mailTos)
{
if (!string.IsNullOrEmpty(mailto))
{
Email.To.Add(mailto);
}
}
}
if (mailCcs != null)
{
foreach (string cc in mailCcs)
{
if (!string.IsNullOrEmpty(cc))
{
Email.CC.Add(cc);
}
}
}
if (mailBccs != null)
{
foreach (string bcc in mailBccs)
{
if (!string.IsNullOrEmpty(bcc))
{
Email.Bcc.Add(bcc);
}
}
}
if (attachments != null)
{
foreach (string file in attachments)
{
if (!string.IsNullOrEmpty(file))
{
Attachment att = new Attachment(file);
Email.Attachments.Add(att);
}
}
}
Email.Subject = mMailSubject;
Email.Body = mMailBody;
Email.Priority = mPriority;
Email.IsBodyHtml = mIsBodyHtml;
// Smtp Client
SmtpClient SmtpMail =
new SmtpClient(mSMTPServer, mSMTPPort);
SmtpMail.Credentials =
new NetworkCredential(mSMTPUsername, mSMTPPassword);
SmtpMail.EnableSsl = mSMTPSSL;
//SmtpMail.UseDefaultCredentials = false;
SmtpMail.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback);
#endregion
try
{
if (!isAsync)
{
SmtpMail.Send(Email);
mailSent = true;
}
else
{
userState = (userState == null) ? Guid.NewGuid() : userState;
SmtpMail.SendAsync(Email, userState);
}
}
catch (SmtpFailedRecipientsException ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
catch (Exception ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
return mailSent;
}
private void SendCompletedCallback(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
// Get the unique identifier for this asynchronous operation.
String token = (string)e.UserState;
if (e.Cancelled)
{
Console.WriteLine("[{0}] Send canceled.", token);
mailSent = false;
}
if (e.Error != null)
{
Console.WriteLine("[{0}] {1}", token, e.Error.ToString());
mailSent = false;
}
else
{
Console.WriteLine("Message sent.");
mailSent = false;
}
mailSent = true;
}
#endregion
}
#endregion
}
附加内容#region 附加内容
POP3 命令简介#region POP3 命令简介
/**//*
什么是 POP3
POP3 (Post Office Protocol 3) 即邮局协议的第 3 个版本,它规定怎样将个人计算机连接到 Internet 的邮件服务器和下载电子邮件的电子协议。它是因特网电子邮件的 第一个离线协议标准, POP3 允许用户从服务器上把邮件存储到本地主机（即自己的计算机）上,同时删除保存在邮件服务器上的邮件，而POP3服务器则是遵循 POP3 协议的接收邮件服务器，用来接收电子邮件的。
POP3 命令
POP3 命令包括：
USER username 认证用户名
PASS password 认证密码认证，认证通过则状态转换
APOP name,digest 认可一种安全传输口令的办法，执行成功导致状态转换，请参见 RFC 1321 。
STAT 处理请求 server 回送邮箱统计资料，如邮件数、 邮件总字节数
UIDL n 处理 server 返回用于该指定邮件的唯一标识， 如果没有指定，返回所有的。
LIST n 处理 server 返回指定邮件的大小等
RETR n 处理 server 返回邮件的全部文本
DELE n 处理 server 标记删除，QUIT 命令执行时才真正删除
RSET 处理撤消所有的 DELE 命令
TOP n,m 处理 返回 n 号邮件的前 m 行内容，m 必须是自然数
NOOP 处理 server 返回一个肯定的响应
QUIT 希望结束会话。如果 server 处于"处理" 状态，则现在进入"更新"状态，删除那些标记成删除的邮件。如果 server 处于"认可"状态，则结束会话时 server 不进入"更新"状态 。
使用 telnet 连接 Winmail Server 收信
例如：安装 Winmail 的邮件服务器 IP 是 192.168.0.1（蓝色字体内容由客户端输入，红色字体内容是服务返回的）
telnet 119.119.119.212 110 ----------------------------- 使用 telnet 命令连接服务器 110 端口
Trying 119.119.119.212 ------------------------------ 正在连接服务器 110 端口
Connected to 119.119.119.212. -------------------------- 连接服务器 110 端口成功
+OK Winmail Mail Server POP3 ready
user username ------------------------------------------ 输入用户名, username 为具体的用户名
+OK ---------------------------------------------------- 执行命令成功
pass password ------------------------------------------ 输入用户密码，password 为具体的密码
+OK 2 messages ----------------------------------------- 密码认证通过
(-ERR authorization failed ----------------------------- 密码认证失败)
stat --------------------------------------------------- 邮箱状态
+OK 2 6415 --------------------------------------------- 2 为该信箱总邮件数，6415 为总字节数
list --------------------------------------------------- 列出每封邮件的字节数
+OK ---------------------------------------------------- 执行命令成功，开始显示，左边为邮件的序号，右边为该邮件的大小
1 537 -------------------------------------------------- 第 1 封邮件，大小为 537 字节
2 5878 ------------------------------------------------- 第 2 封邮件，大小为 5878 字节
.
top 1 -------------------------------------------------- 接收第 1 封邮件
+OK ---------------------------------------------------- 接收成功, 返回第 1 封邮件头
Return-Path: <test1@look.com>
Delivered-To: test2@look.com
Received: (winmail server invoked for smtp delivery); Mon, 25 Oct 2004 14:24:27 +0800
From: test1@look.com
To: test2@look.com
Date: Mon, 25 Oct 2004 14:24:27 +0800
Subject: test mail
.
retr 1 ------------------------------------------------- 接收第 1 封邮件
+OK ---------------------------------------------------- 接收成功, 返回第 1 封邮件全部内容
Return-Path: <test1@look.com>
Delivered-To: test2@look.com
Received: (winmail server invoked for smtp delivery); Mon, 25 Oct 2004 14:24:27 +0800
From: test1@look.com
To: test2@look.com
Date: Mon, 25 Oct 2004 14:24:27 +0800
Subject: test mail
Hi, test2
This is a test mail, you don't reply it.
.
dele 1 ------------------------------------------------- 删除第 1 封邮件
+OK ---------------------------------------------------- 删除成功
dele 2 ------------------------------------------------- 删除第 2 封邮件
+OK ---------------------------------------------------- 删除成功
quit --------------------------------------------------- 结束会话
+OK ---------------------------------------------------- 执行命令成功
*/
#endregion
#endregion
测试程序
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2006-8-16
最近做的项目需要群发邮件，发现上面的SMTP类每发送一封邮件必须创建创建一个实例，这无疑是对系统资源的浪费，所以重构了一下，结果如下，推荐大家使用下面的实现方法
using System;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
using System.Threading;
using System.Net.Sockets;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Net.Configuration;
using System.Configuration;
namespace Mailer.Components
{
邮件发送类#region 邮件发送类
public class SMTP
{
Fields#region Fields
private string _mailFrom;
private string _displayName;
private SmtpClient smtpMail;
#endregion
Properties#region Properties
public string MailFrom
{
get { return _mailFrom; }
set { _mailFrom = value; }
}
public string DisplayName
{
get { return _displayName; }
set { _displayName = value; }
}
#endregion
Constructors#region Constructors
public SMTP()
{
System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/");
MailSettingsSectionGroup mailSettings = (MailSettingsSectionGroup)config.GetSectionGroup("system.net/mailSettings");
string mailFrom = mailSettings.Smtp.From;
string smtpServer = mailSettings.Smtp.Network.Host;
int smtpPort = mailSettings.Smtp.Network.Port;
string smtpUsername = mailSettings.Smtp.Network.UserName;
string password = mailSettings.Smtp.Network.Password;
smtpMail = new SmtpClient(smtpServer, smtpPort);
smtpMail.Credentials = new NetworkCredential(smtpUsername, password);
this._mailFrom = mailFrom;
this._displayName = smtpUsername;
}
public SMTP(string smtpServer, string userName, string password)
: this(null, smtpServer, userName, password)
{
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
public SMTP(string mailFrom, string smtpServer, string userName, string password)
: this(mailFrom, mailFrom, smtpServer, userName, password)
{
}
/**//// <summary>
/// 邮件发送类
/// </summary>
/// <param name="mailFrom">发件人地址</param>
/// <param name="displayName">显示的名称</param>
/// <param name="smtpServer">SMTP 服务器</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
public SMTP(string mailFrom, string displayName, string smtpServer, string userName, string password)
: this(mailFrom, displayName, smtpServer, 25, userName, password, false)
{
}
public SMTP(string mailFrom, string displayName, string smtpServer, int smtpPort, string userName, string password, bool smtpSsl)
{
this._mailFrom = mailFrom;
this._displayName = displayName;
smtpMail = new SmtpClient(smtpServer, smtpPort);
smtpMail.Credentials = new NetworkCredential(userName, password);
smtpMail.EnableSsl = smtpSsl;
}
#endregion
Methods#region Methods
Public#region Public
public Boolean Send(string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml)
{
string[] mailTos = new string[] { mailTo };
string[] attachments = null;
System.Text.Encoding bodyEncoding = System.Text.Encoding.Default;
return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public Boolean Send(string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
string[] mailTos = new string[] { mailTo };
return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public Boolean Send(string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
return Send(this._mailFrom, this._displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**//// <summary>
/// 同步发送邮件
/// </summary>
/// <returns></returns>
public Boolean Send(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
return SendMail(false, null, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml)
{
string[] mailTos = new string[] { mailTo };
string[] attachments = null;
System.Text.Encoding bodyEncoding = System.Text.Encoding.Default;
SendAsync(userState, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
string[] mailTos = new string[] { mailTo };
SendAsync(userState, this._mailFrom, this._displayName, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
public void SendAsync(object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
SendMail(true, userState, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**//// <summary>
/// 异步发送邮件
/// </summary>
/// <param name="userState">异步任务的唯一标识符</param>
/// <returns></returns>
public void SendAsync(object userState, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
SendMail(true, userState, null, null, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
}
/**//// <summary>
/// 发送邮件
/// </summary>
/// <param name="isAsync">是否异步发送邮件</param>
/// <param name="userState">异步任务的唯一标识符，当 isAsync 为 True 时必须设置该属性， 当 isAsync 为 False 时可设置为 null</param>
/// <returns></returns>
private Boolean SendMail(bool isAsync, object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
bool mailSent = false;
设置属性值#region 设置属性值
if (string.IsNullOrEmpty(mailFrom))
mailFrom = this._mailFrom;
if (string.IsNullOrEmpty(displayName))
displayName = this._displayName;
MailMessage Email = GetMailMessage(mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding);
smtpMail.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback);
#endregion
try
{
if (!isAsync)
{
smtpMail.Send(Email);
mailSent = true;
}
else
{
userState = (userState == null) ? Guid.NewGuid() : userState;
smtpMail.SendAsync(Email, userState);
}
}
catch (SmtpFailedRecipientsException ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
catch (Exception ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message);
mailSent = false;
}
return mailSent;
}
#endregion
Private#region Private
private MailMessage GetMailMessage(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding)
{
// build the email message
MailMessage emailMessage = new MailMessage();
if (string.IsNullOrEmpty(mailFrom))
mailFrom = this._mailFrom;
if (string.IsNullOrEmpty(displayName))
displayName = this._displayName;
MailAddress mailFromObject = new MailAddress(mailFrom, displayName);
emailMessage.From = mailFromObject;
if (mailTos != null)
{
foreach (string mailto in mailTos)
{
if (!string.IsNullOrEmpty(mailto))
{
emailMessage.To.Add(mailto);
}
}
}
if (mailCcs != null)
{
foreach (string cc in mailCcs)
{
if (!string.IsNullOrEmpty(cc))
{
emailMessage.CC.Add(cc);
}
}
}
if (mailBccs != null)
{
foreach (string bcc in mailBccs)
{
if (!string.IsNullOrEmpty(bcc))
{
emailMessage.Bcc.Add(bcc);
}
}
}
if (attachments != null)
{
foreach (string file in attachments)
{
if (!string.IsNullOrEmpty(file))
{
Attachment att = new Attachment(file);
emailMessage.Attachments.Add(att);
}
}
}
emailMessage.Subject = mailSubject;
emailMessage.Body = mailBody;
emailMessage.Priority = priority;
emailMessage.IsBodyHtml = isBodyHtml;
emailMessage.BodyEncoding = bodyEncoding;
return emailMessage;
}
private void SendCompletedCallback(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
bool mailSent = false;
// Get the unique identifier for this asynchronous operation.
String token = e.UserState.ToString();
if (e.Cancelled)
{
//Console.WriteLine("[{0}] Send canceled.", token);
mailSent = false;
}
if (e.Error != null)
{
//Console.WriteLine("[{0}] {1}", token, e.Error.ToString());
mailSent = false;
}
else
{
//Console.WriteLine("Message sent.");
mailSent = false;
}
mailSent = true;
}
#endregion
#endregion
}
#endregion
}
/**//******************************************** * * description: 基于 .NET 2.0 System.Net.Mail namespace * 的邮件发送接收组件 * * author: yyw84 * * blogs: http://yyw84.cnblogs.com/ * * Date: 2006-5-4 * ********************************************/using System;using System.Net;using System.Net.Mail;using System.Net.Mime;using System.Threading;using System.Net.Sockets;using System.IO;using System.Collections;using System.Collections.Generic;using System.Net.Configuration;using System.Configuration;namespace Mailer.Components{ 邮件接收类#region 邮件接收类 /**//// <summary> /// 邮件接收类 /// </summary> public class POP3 { Fields#region Fields string POPServer; string mPOPUserName; string mPOPPass; int mPOPPort; NetworkStream ns; StreamReader sr; #endregion Constructors#region Constructors /**//// <summary> /// POP3 /// </summary> /// <param name="server">POP3服务器名称</param> /// <param name="userName">用户名</param> /// <param name="password">用户密码</param> public POP3(string server, string userName, string password) : this(server, 110, userName, password) { } /**//// <summary> /// POP3 /// </summary> /// <param name="server">POP3服务器名称</param> /// <param name="port">端口号</param> /// <param name="userName">用户名</param> /// <param name="password">用户密码</param> public POP3(string server, int port, string userName, string password) { POPServer = server; mPOPUserName = userName; mPOPPass = password; mPOPPort = port; } #endregion Methods#region Methods Public#region Public /**//// <summary> /// 获得新邮件数量 /// </summary> /// <returns>新邮件数量</returns> public int GetNumberOfNewMessages() { byte[] outbytes; string input; try { Connect(); input = "stat" + "\r\n"; outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); string resp = sr.ReadLine(); string[] tokens = resp.Split(new Char[] { ' ' }); Disconnect(); return Convert.ToInt32(tokens[1]); } catch { return -1; } } /**//// <summary> /// 获取新邮件内容 /// </summary> /// <param name="subj">邮件主题</param> /// <returns>新邮件内容</returns> public List<MailMessage> GetNewMessages(string subj) { int newcount; List<MailMessage> newmsgs = new List<MailMessage>(); try { newcount = GetNumberOfNewMessages(); Connect(); for (int n = 1; n < newcount + 1; n++) { List<string> msglines = GetRawMessage(n); string msgsubj = GetMessageSubject(msglines); if (msgsubj.CompareTo(subj) == 0) { MailMessage msg = new MailMessage(); msg.Subject = msgsubj; msg.From = new MailAddress(GetMessageFrom(msglines)); msg.Body = GetMessageBody(msglines); newmsgs.Add(msg); DeleteMessage(n); } } Disconnect(); return newmsgs; } catch (Exception e) { return newmsgs; } } /**//// <summary> /// 获取新邮件内容 /// </summary> /// <param name="nIndex">新邮件索引</param> /// <returns>新邮件内容</returns> public MailMessage GetNewMessages(int nIndex) { int newcount; MailMessage msg = new MailMessage(); try { newcount = GetNumberOfNewMessages(); Connect(); int n = nIndex + 1; if (n < newcount + 1) { List<string> msglines = GetRawMessage(n); string msgsubj = GetMessageSubject(msglines); msg.Subject = msgsubj; msg.From = new MailAddress(GetMessageFrom(msglines)); msg.Body = GetMessageBody(msglines); } Disconnect(); return msg; } catch { return null; } } #endregion Private#region Private private bool Connect() { TcpClient sender = new TcpClient(POPServer, mPOPPort); byte[] outbytes; string input; try { ns = sender.GetStream(); sr = new StreamReader(ns); sr.ReadLine(); input = "user " + mPOPUserName + "\r\n"; outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); sr.ReadLine(); input = "pass " + mPOPPass + "\r\n"; outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); sr.ReadLine(); return true; } catch { return false; } } private void Disconnect() { string input = "quit" + "\r\n"; Byte[] outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); ns.Close(); } private List<string> GetRawMessage(int messagenumber) { Byte[] outbytes; string input; string line = ""; input = "retr " + messagenumber.ToString() + "\r\n"; outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); List<string> msglines = new List<string>(); do { line = sr.ReadLine(); msglines.Add(line); } while (line != "."); msglines.RemoveAt(msglines.Count - 1); return msglines; } private string GetMessageSubject(List<string> msglines) { string[] tokens; IEnumerator msgenum = msglines.GetEnumerator(); while (msgenum.MoveNext()) { string line = (string)msgenum.Current; if (line.StartsWith("Subject:")) { tokens = line.Split(new Char[] { ' ' }); return tokens[1].Trim(); } } return "None"; } private string GetMessageFrom(List<string> msglines) { string[] tokens; IEnumerator msgenum = msglines.GetEnumerator(); while (msgenum.MoveNext()) { string line = (string)msgenum.Current; if (line.StartsWith("From:")) { tokens = line.Split(new Char[] { '<' }); return tokens[1].Trim(new Char[] { '<', '>' }); } } return "None"; } private string GetMessageBody(List<string> msglines) { string body = ""; string line = " "; IEnumerator msgenum = msglines.GetEnumerator(); while (line.CompareTo("") != 0) { msgenum.MoveNext(); line = (string)msgenum.Current; } while (msgenum.MoveNext()) { body = body + (string)msgenum.Current + "\r\n"; } return body; } private void DeleteMessage(int messagenumber) { Byte[] outbytes; string input; try { input = "dele " + messagenumber.ToString() + "\r\n"; outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray()); ns.Write(outbytes, 0, outbytes.Length); } catch (Exception e) { return; } } #endregion #endregion } #endregion 邮件发送类#region 邮件发送类 public class SMTP { Fields#region Fields private string mMailFrom; private string mMailDisplyName; private string[] mMailTo; private string[] mMailCc; private string[] mMailBcc; private string mMailSubject; private string mMailBody; private string[] mMailAttachments; private string mSMTPServer; private int mSMTPPort; private string mSMTPUsername; private string mSMTPPassword; private bool mSMTPSSL; private MailPriority mPriority = MailPriority.Normal; private bool mIsBodyHtml = false; private MailMessage MailObject; bool mailSent = false; #endregion Properties#region Properties /**//// <summary> /// 发件人地址 /// </summary> public string MailFrom { set { mMailFrom = value; } get { return mMailFrom; } } /**//// <summary> /// 显示的名称 /// </summary> public string MailDisplyName { set { mMailDisplyName = value; } get { return mMailDisplyName; } } /**//// <summary> /// 收件人地址 /// </summary> public string[] MailTo { set { mMailTo = value; } get { return mMailTo; } } /**//// <summary> /// 抄送 /// </summary> public string[] MailCc { set { mMailCc = value; } get { return mMailCc; } } /**//// <summary> /// 密件抄送 /// </summary> public string[] MailBcc { set { mMailBcc = value; } get { return mMailBcc; } } /**//// <summary> /// 邮件主题 /// </summary> public string MailSubject { set { mMailSubject = value; } get { return mMailSubject; } } /**//// <summary> /// 邮件正文 /// </summary> public string MailBody { set { mMailBody = value; } get { return mMailBody; } } /**//// <summary> /// 附件 /// </summary> public string[] MailAttachments { set { mMailAttachments = value; } get { return mMailAttachments; } } /**//// <summary> /// SMTP 服务器 /// </summary> public string SMTPServer { set { mSMTPServer = value; } get { return mSMTPServer; } } /**//// <summary> /// 发送端口号(默认为 25) /// </summary> public int SMTPPort { set { mSMTPPort = value; } get { return mSMTPPort; } } /**//// <summary> /// 用户名 /// </summary> public string SMTPUsername { set { mSMTPUsername = value; } get { return mSMTPUsername; } } /**//// <summary> /// 密码 /// </summary> public string SMTPPassword { set { mSMTPPassword = value; } get { return mSMTPPassword; } } /**//// <summary> /// 是否使用安全套接字层 (SSL) 加密连接 /// 默认为 false /// </summary> public Boolean SMTPSSL { set { mSMTPSSL = value; } get { return mSMTPSSL; } } /**//// <summary> /// 邮件的优先级 /// </summary> public MailPriority Priority { get { return mPriority; } set { mPriority = value; } } /**//// <summary> /// 示邮件正文是否为 Html 格式的值 /// </summary> public bool IsBodyHtml { get { return mIsBodyHtml; } set { mIsBodyHtml = value; } } #endregion Constructors#region Constructors /**//// <summary> /// 邮件发送类 /// 主机信息从配置文件中获取 /// 参考:ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.NETDEVFX.v20.chs/dv_fxgenref/html/54f0f153-17e5-4f49-afdc-deadb940c9c1.htm /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="mailTo">收件人地址</param> /// <param name="mailSubject">邮件主题</param> /// <param name="mailBody">邮件正文</param> public SMTP(string[] mailTo, string mailSubject, string mailBody) { Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); MailSettingsSectionGroup mailSettings = NetSectionGroup.GetSectionGroup(config).MailSettings; MailObject = new MailMessage(); mMailFrom = mailSettings.Smtp.From; mMailDisplyName = mailSettings.Smtp.From; mMailTo = mailTo; mMailCc = null; mMailBcc = null; mMailSubject = mailSubject; mMailBody = mailBody; mMailAttachments = null; mSMTPServer = mailSettings.Smtp.Network.Host; mSMTPPort = mailSettings.Smtp.Network.Port; mSMTPUsername = mailSettings.Smtp.Network.UserName; mSMTPPassword = mailSettings.Smtp.Network.Password; mSMTPSSL = false; } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="mailTo">收件人地址</param> /// <param name="mailSubject">邮件主题</param> /// <param name="mailBody">邮件正文</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> public SMTP(string mailFrom, string[] mailTo, string mailSubject, string mailBody, string smtpServer, string userName, string password) : this(mailFrom, mailFrom, mailTo, mailSubject, mailBody, null, smtpServer, userName, password) { } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="displayName">显示的名称</param> /// <param name="mailTo">收件人地址</param> /// <param name="mailSubject">邮件主题</param> /// <param name="mailBody">邮件正文</param> /// <param name="attachments">附件,多个时用逗号隔开(可为空)</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> public SMTP(string mailFrom, string[] mailTo, string mailSubject, string mailBody, string[] attachments, string smtpServer, string userName, string password) : this(mailFrom, mailFrom, mailTo, mailSubject, mailBody, attachments, smtpServer, userName, password) { } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="displayName">显示的名称</param> /// <param name="mailTo">收件人地址</param> /// <param name="mailSubject">邮件主题</param> /// <param name="mailBody">邮件正文</param> /// <param name="attachments">附件,多个时用逗号隔开(可为空)</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> public SMTP(string mailFrom, string displayName, string[] mailTo, string mailSubject, string mailBody, string[] attachments, string smtpServer, string userName, string password) : this(mailFrom, displayName, mailTo, null, null, mailSubject, mailBody, attachments, smtpServer, 25, userName, password, false) { } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="displayName">显示的名称</param> /// <param name="mailTo">收件人地址</param> /// <param name="mailCc">抄送,多个收件人用逗号隔开(可为空)</param> /// <param name="mailBcc">密件抄送,多个收件人用逗号隔开(可为空)</param> /// <param name="mailSubject">邮件主题</param> /// <param name="mailBody">邮件正文</param> /// <param name="attachments">附件,多个时用逗号隔开(可为空)</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="smtpPort">发送端口号(默认为 25)</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> /// <param name="smtpSsl">是否使用安全套接字层 (SSL) 加密连接</param> public SMTP(string mailFrom, string displayName, string[] mailTo, string[] mailCc, string[] mailBcc, string mailSubject, string mailBody, string[] attachments, string smtpServer, int smtpPort, string userName, string password, bool smtpSsl) { MailObject = new MailMessage(); mMailFrom = mailFrom; mMailDisplyName = displayName; mMailTo = mailTo; mMailCc = mailCc; mMailBcc = mailBcc; mMailSubject = mailSubject; mMailBody = mailBody; mMailAttachments = attachments; mSMTPServer = smtpServer; mSMTPPort = smtpPort; mSMTPUsername = userName; mSMTPPassword = password; mSMTPSSL = smtpSsl; } #endregion Methods#region Methods /**//// <summary> /// 同步发送邮件 /// </summary> /// <returns></returns> public Boolean Send() { return SendMail(false, null); } /**//// <summary> /// 异步发送邮件 /// </summary> /// <param name="userState">异步任务的唯一标识符</param> /// <returns></returns> public void SendAsync(object userState) { SendMail(true, userState); } /**//// <summary> /// 发送邮件 /// </summary> /// <param name="isAsync">是否异步发送邮件</param> /// <param name="userState">异步任务的唯一标识符，当 isAsync 为 True 时必须设置该属性， 当 isAsync 为 False 时可设置为 null</param> /// <returns></returns> private Boolean SendMail(bool isAsync, object userState) { 设置属性值#region 设置属性值 string[] mailTos = mMailTo; string[] mailCcs = mMailCc; string[] mailBccs = mMailBcc; string[] attachments = mMailAttachments; // build the email message MailMessage Email = new MailMessage(); MailAddress MailFrom = new MailAddress(mMailFrom, mMailDisplyName); Email.From = MailFrom; if (mailTos != null) { foreach (string mailto in mailTos) { if (!string.IsNullOrEmpty(mailto)) { Email.To.Add(mailto); } } } if (mailCcs != null) { foreach (string cc in mailCcs) { if (!string.IsNullOrEmpty(cc)) { Email.CC.Add(cc); } } } if (mailBccs != null) { foreach (string bcc in mailBccs) { if (!string.IsNullOrEmpty(bcc)) { Email.Bcc.Add(bcc); } } } if (attachments != null) { foreach (string file in attachments) { if (!string.IsNullOrEmpty(file)) { Attachment att = new Attachment(file); Email.Attachments.Add(att); } } } Email.Subject = mMailSubject; Email.Body = mMailBody; Email.Priority = mPriority; Email.IsBodyHtml = mIsBodyHtml; // Smtp Client SmtpClient SmtpMail = new SmtpClient(mSMTPServer, mSMTPPort); SmtpMail.Credentials = new NetworkCredential(mSMTPUsername, mSMTPPassword); SmtpMail.EnableSsl = mSMTPSSL; //SmtpMail.UseDefaultCredentials = false; SmtpMail.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback); #endregion try { if (!isAsync) { SmtpMail.Send(Email); mailSent = true; } else { userState = (userState == null) ? Guid.NewGuid() : userState; SmtpMail.SendAsync(Email, userState); } } catch (SmtpFailedRecipientsException ex) { //System.Windows.Forms.MessageBox.Show(ex.Message); mailSent = false; } catch (Exception ex) { //System.Windows.Forms.MessageBox.Show(ex.Message); mailSent = false; } return mailSent; } private void SendCompletedCallback(object sender, System.ComponentModel.AsyncCompletedEventArgs e) { // Get the unique identifier for this asynchronous operation. String token = (string)e.UserState; if (e.Cancelled) { Console.WriteLine("[{0}] Send canceled.", token); mailSent = false; } if (e.Error != null) { Console.WriteLine("[{0}] {1}", token, e.Error.ToString()); mailSent = false; } else { Console.WriteLine("Message sent."); mailSent = false; } mailSent = true; } #endregion } #endregion}附加内容#region 附加内容POP3 命令简介#region POP3 命令简介/**//*什么是 POP3POP3 (Post Office Protocol 3) 即邮局协议的第 3 个版本,它规定怎样将个人计算机连接到 Internet 的邮件服务器和下载电子邮件的电子协议。它是因特网电子邮件的 第一个离线协议标准, POP3 允许用户从服务器上把邮件存储到本地主机（即自己的计算机）上,同时删除保存在邮件服务器上的邮件，而POP3服务器则是遵循 POP3 协议的接收邮件服务器，用来接收电子邮件的。POP3 命令POP3 命令包括：USER username 认证用户名PASS password 认证密码认证，认证通过则状态转换 APOP name,digest 认可一种安全传输口令的办法，执行成功导致状态转换，请参见 RFC 1321 。STAT 处理请求 server 回送邮箱统计资料，如邮件数、 邮件总字节数UIDL n 处理 server 返回用于该指定邮件的唯一标识， 如果没有指定，返回所有的。LIST n 处理 server 返回指定邮件的大小等 RETR n 处理 server 返回邮件的全部文本 DELE n 处理 server 标记删除，QUIT 命令执行时才真正删除RSET 处理撤消所有的 DELE 命令 TOP n,m 处理 返回 n 号邮件的前 m 行内容，m 必须是自然数 NOOP 处理 server 返回一个肯定的响应 QUIT 希望结束会话。如果 server 处于"处理" 状态，则现在进入"更新"状态，删除那些标记成删除的邮件。如果 server 处于"认可"状态，则结束会话时 server 不进入"更新"状态 。使用 telnet 连接 Winmail Server 收信例如：安装 Winmail 的邮件服务器 IP 是 192.168.0.1（蓝色字体内容由客户端输入，红色字体内容是服务返回的） telnet 119.119.119.212 110 ----------------------------- 使用 telnet 命令连接服务器 110 端口Trying 119.119.119.212 ------------------------------ 正在连接服务器 110 端口Connected to 119.119.119.212. -------------------------- 连接服务器 110 端口成功+OK Winmail Mail Server POP3 readyuser username ------------------------------------------ 输入用户名, username 为具体的用户名+OK ---------------------------------------------------- 执行命令成功pass password ------------------------------------------ 输入用户密码，password 为具体的密码+OK 2 messages ----------------------------------------- 密码认证通过 (-ERR authorization failed ----------------------------- 密码认证失败)stat --------------------------------------------------- 邮箱状态+OK 2 6415 --------------------------------------------- 2 为该信箱总邮件数，6415 为总字节数 list --------------------------------------------------- 列出每封邮件的字节数 +OK ---------------------------------------------------- 执行命令成功，开始显示，左边为邮件的序号，右边为该邮件的大小 1 537 -------------------------------------------------- 第 1 封邮件，大小为 537 字节 2 5878 ------------------------------------------------- 第 2 封邮件，大小为 5878 字节 .top 1 -------------------------------------------------- 接收第 1 封邮件 +OK ---------------------------------------------------- 接收成功, 返回第 1 封邮件头Return-Path: <test1@look.com>Delivered-To: test2@look.comReceived: (winmail server invoked for smtp delivery); Mon, 25 Oct 2004 14:24:27 +0800From: test1@look.comTo: test2@look.comDate: Mon, 25 Oct 2004 14:24:27 +0800Subject: test mail .retr 1 ------------------------------------------------- 接收第 1 封邮件 +OK ---------------------------------------------------- 接收成功, 返回第 1 封邮件全部内容Return-Path: <test1@look.com>Delivered-To: test2@look.comReceived: (winmail server invoked for smtp delivery); Mon, 25 Oct 2004 14:24:27 +0800From: test1@look.comTo: test2@look.comDate: Mon, 25 Oct 2004 14:24:27 +0800Subject: test mail Hi, test2 This is a test mail, you don't reply it..dele 1 ------------------------------------------------- 删除第 1 封邮件 +OK ---------------------------------------------------- 删除成功 dele 2 ------------------------------------------------- 删除第 2 封邮件 +OK ---------------------------------------------------- 删除成功 quit --------------------------------------------------- 结束会话 +OK ---------------------------------------------------- 执行命令成功 */#endregion#endregion测试程序
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2006-8-16
最近做的项目需要群发邮件，发现上面的SMTP类每发送一封邮件必须创建创建一个实例，这无疑是对系统资源的浪费，所以重构了一下，结果如下，推荐大家使用下面的实现方法
using System;using System.Net;using System.Net.Mail;using System.Net.Mime;using System.Threading;using System.Net.Sockets;using System.IO;using System.Collections;using System.Collections.Generic;using System.Net.Configuration;using System.Configuration;namespace Mailer.Components{ 邮件发送类#region 邮件发送类 public class SMTP { Fields#region Fields private string _mailFrom; private string _displayName; private SmtpClient smtpMail; #endregion Properties#region Properties public string MailFrom { get { return _mailFrom; } set { _mailFrom = value; } } public string DisplayName { get { return _displayName; } set { _displayName = value; } } #endregion Constructors#region Constructors public SMTP() { System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/"); MailSettingsSectionGroup mailSettings = (MailSettingsSectionGroup)config.GetSectionGroup("system.net/mailSettings"); string mailFrom = mailSettings.Smtp.From; string smtpServer = mailSettings.Smtp.Network.Host; int smtpPort = mailSettings.Smtp.Network.Port; string smtpUsername = mailSettings.Smtp.Network.UserName; string password = mailSettings.Smtp.Network.Password; smtpMail = new SmtpClient(smtpServer, smtpPort); smtpMail.Credentials = new NetworkCredential(smtpUsername, password); this._mailFrom = mailFrom; this._displayName = smtpUsername; } public SMTP(string smtpServer, string userName, string password) : this(null, smtpServer, userName, password) { } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> public SMTP(string mailFrom, string smtpServer, string userName, string password) : this(mailFrom, mailFrom, smtpServer, userName, password) { } /**//// <summary> /// 邮件发送类 /// </summary> /// <param name="mailFrom">发件人地址</param> /// <param name="displayName">显示的名称</param> /// <param name="smtpServer">SMTP 服务器</param> /// <param name="userName">用户名</param> /// <param name="password">密码</param> public SMTP(string mailFrom, string displayName, string smtpServer, string userName, string password) : this(mailFrom, displayName, smtpServer, 25, userName, password, false) { } public SMTP(string mailFrom, string displayName, string smtpServer, int smtpPort, string userName, string password, bool smtpSsl) { this._mailFrom = mailFrom; this._displayName = displayName; smtpMail = new SmtpClient(smtpServer, smtpPort); smtpMail.Credentials = new NetworkCredential(userName, password); smtpMail.EnableSsl = smtpSsl; } #endregion Methods#region Methods Public#region Public public Boolean Send(string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml) { string[] mailTos = new string[] { mailTo }; string[] attachments = null; System.Text.Encoding bodyEncoding = System.Text.Encoding.Default; return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } public Boolean Send(string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { string[] mailTos = new string[] { mailTo }; return Send(mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } public Boolean Send(string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { return Send(this._mailFrom, this._displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } /**//// <summary> /// 同步发送邮件 /// </summary> /// <returns></returns> public Boolean Send(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { return SendMail(false, null, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, MailPriority priority, bool isBodyHtml) { string[] mailTos = new string[] { mailTo }; string[] attachments = null; System.Text.Encoding bodyEncoding = System.Text.Encoding.Default; SendAsync(userState, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } public void SendAsync(object userState, string mailTo, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { string[] mailTos = new string[] { mailTo }; SendAsync(userState, this._mailFrom, this._displayName, mailTos, null, null, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } public void SendAsync(object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { SendMail(true, userState, mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } /**//// <summary> /// 异步发送邮件 /// </summary> /// <param name="userState">异步任务的唯一标识符</param> /// <returns></returns> public void SendAsync(object userState, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { SendMail(true, userState, null, null, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); } /**//// <summary> /// 发送邮件 /// </summary> /// <param name="isAsync">是否异步发送邮件</param> /// <param name="userState">异步任务的唯一标识符，当 isAsync 为 True 时必须设置该属性， 当 isAsync 为 False 时可设置为 null</param> /// <returns></returns> private Boolean SendMail(bool isAsync, object userState, string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { bool mailSent = false; 设置属性值#region 设置属性值 if (string.IsNullOrEmpty(mailFrom)) mailFrom = this._mailFrom; if (string.IsNullOrEmpty(displayName)) displayName = this._displayName; MailMessage Email = GetMailMessage(mailFrom, displayName, mailTos, mailCcs, mailBccs, mailSubject, mailBody, attachments, priority, isBodyHtml, bodyEncoding); smtpMail.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback); #endregion try { if (!isAsync) { smtpMail.Send(Email); mailSent = true; } else { userState = (userState == null) ? Guid.NewGuid() : userState; smtpMail.SendAsync(Email, userState); } } catch (SmtpFailedRecipientsException ex) { //System.Windows.Forms.MessageBox.Show(ex.Message); mailSent = false; } catch (Exception ex) { //System.Windows.Forms.MessageBox.Show(ex.Message); mailSent = false; } return mailSent; } #endregion Private#region Private private MailMessage GetMailMessage(string mailFrom, string displayName, string[] mailTos, string[] mailCcs, string[] mailBccs, string mailSubject, string mailBody, string[] attachments, MailPriority priority, bool isBodyHtml, System.Text.Encoding bodyEncoding) { // build the email message MailMessage emailMessage = new MailMessage(); if (string.IsNullOrEmpty(mailFrom)) mailFrom = this._mailFrom; if (string.IsNullOrEmpty(displayName)) displayName = this._displayName; MailAddress mailFromObject = new MailAddress(mailFrom, displayName); emailMessage.From = mailFromObject; if (mailTos != null) { foreach (string mailto in mailTos) { if (!string.IsNullOrEmpty(mailto)) { emailMessage.To.Add(mailto); } } } if (mailCcs != null) { foreach (string cc in mailCcs) { if (!string.IsNullOrEmpty(cc)) { emailMessage.CC.Add(cc); } } } if (mailBccs != null) { foreach (string bcc in mailBccs) { if (!string.IsNullOrEmpty(bcc)) { emailMessage.Bcc.Add(bcc); } } } if (attachments != null) { foreach (string file in attachments) { if (!string.IsNullOrEmpty(file)) { Attachment att = new Attachment(file); emailMessage.Attachments.Add(att); } } } emailMessage.Subject = mailSubject; emailMessage.Body = mailBody; emailMessage.Priority = priority; emailMessage.IsBodyHtml = isBodyHtml; emailMessage.BodyEncoding = bodyEncoding; return emailMessage; } private void SendCompletedCallback(object sender, System.ComponentModel.AsyncCompletedEventArgs e) { bool mailSent = false; // Get the unique identifier for this asynchronous operation. String token = e.UserState.ToString(); if (e.Cancelled) { //Console.WriteLine("[{0}] Send canceled.", token); mailSent = false; } if (e.Error != null) { //Console.WriteLine("[{0}] {1}", token, e.Error.ToString()); mailSent = false; } else { //Console.WriteLine("Message sent."); mailSent = false; } mailSent = true; } #endregion #endregion } #endregion}
