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"))
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