//============================================================
// file: MailSender.cs
// 邮件发送组件
// 支持ESMTP, 多附件
//============================================================
namespace JcPersonal.Utility
{
using System;
using System.Collections;
using System.Net.Sockets;
using System.IO;
using System.Text;
///
/// Mail 发送器
///
public class MailSender
{
///
/// SMTP服务器域名
///
public string Server {
get { return server; }
set { if (value != server) server = value; }
} private string server = "";
///
/// SMTP服务器端口 [默认为25]
///
public int Port {
get { return port; }
set { if (value != port) port = value; }
} private int port = 25;
///
/// 用户名 [如果需要身份验证的话]
///
public string UserName {
get { return userName; }
set { if (value != userName) userName = value; }
} private string userName = "";
///
/// 密码 [如果需要身份验证的话]
///
public string Password {
get { return password; }
set { if (value != password) password = value; }
} private string password = "";
///
/// 发件人地址
///
public string From {
get { return from; }
set { if (value != from) from = value;}
} private string from = "";
///
/// 收件人地址
///
public string To {
get { return to; }
set { if (value != to) to = value;}
} private string to = "";
///
/// 发件人姓名
///
public string FromName {
get { return fromName; }
set { if (value != fromName) fromName = value; }
} private string fromName = "";
///
/// 收件人姓名
///
public string ToName {
get { return toName; }
set { if (value != toName) toName = value; }
} private string toName = "";
///
/// 邮件的主题
///
public string Subject {
get { return subject; }
set { if (value != subject) subject = value; }
} private string subject = "";
///
/// 邮件正文
///
public string Body {
get { return body; }
set { if (value != body) body = value; }
} private string body = "";
///
/// 超文本格式的邮件正文
///
public string HtmlBody {
get { return htmlBody; }
set { if (value != htmlBody) htmlBody = value; }
} private string htmlBody = "";
///
/// 是否是html格式的邮件
///
public bool IsHtml {
get { return isHtml; }
set { if (value != isHtml) isHtml = value; }
} private bool isHtml = false;
///
/// 语言编码 [默认为GB2312]
///
public string LanguageEncoding {
get { return languageEncoding; }
set { if (value != languageEncoding) languageEncoding = value; }
} private string languageEncoding = "GB2312";
///
/// 邮件编码 [默认为8bit]
///
public string MailEncoding {
get { return encoding; }
set { if (value != encoding) encoding = value; }
} private string encoding = "8bit";
///
/// 邮件优先级 [默认为3]
///
public int Priority {
get { return priority; }
set { if (value != priority) priority = value; }
} private int priority = 3;
///
/// 附件 [AttachmentInfo]
///
public IList Attachments {
get { return attachments; }
// set { if (value != attachments) attachments = value; }
} private ArrayList attachments = new ArrayList ();
///
/// 发送邮件
///
public void SendMail ()
{
// 创建TcpClient对象， 并建立连接
TcpClient tcp = null;
try
{
tcp = new TcpClient (server, port);
}
catch (Exception)
{
throw new Exception ("无法连接服务器");
}
ReadString (tcp.GetStream());//获取连接信息
// 开始进行服务器认证
// 如果状态码是250则表示操作成功
if (!Command (tcp.GetStream(), "EHLO Localhost", "250"))
throw new Exception ("登陆阶段失败");
if (userName != "")
{
// 需要身份验证
if (!Command (tcp.GetStream(), "AUTH LOGIN", "334"))
throw new Exception ("身份验证阶段失败");
string nameB64 = ToBase64 (userName); // 此处将username转换为Base64码
if (!Command (tcp.GetStream(), nameB64, "334"))
throw new Exception ("身份验证阶段失败");
string passB64 = ToBase64 (password); // 此处将password转换为Base64码
if (!Command (tcp.GetStream(), passB64, "235"))
throw new Exception ("身份验证阶段失败");
}
// 准备发送
WriteString (tcp.GetStream(), "mail From: " + from);
WriteString (tcp.GetStream(), "rcpt to: " + to);
WriteString (tcp.GetStream(), "data");
// 发送邮件头
WriteString (tcp.GetStream(), "Date: " + DateTime.Now); // 时间
WriteString (tcp.GetStream(), "From: " + fromName + "<" + from + ">"); // 发件人
WriteString (tcp.GetStream(), "Subject: " + subject); // 主题
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