public bool Send(MailMessage mailMessage, string username, string password)
{
SmtpServerHelper helper = new SmtpServerHelper();
if (helper.SendEmail(SmtpServer, 25, username, password, mailMessage))
return true;
else
{
ErrMsg = helper.ErrMsg;
return false;
}
}
public bool SendEmail(string smtpServer, int port, string username, string password, MailMessage mailMessage)
{
return SendEmail(smtpServer, port, true, username, password, mailMessage);
}
public bool SendEmail(string smtpServer, int port, MailMessage mailMessage)
{
return SendEmail(smtpServer, port, false, "", "", mailMessage);
}
private bool SendEmail(string smtpServer, int port, bool eSmtp, string username, string password, MailMessage mailMessage)
{
if (Connect(smtpServer, port) == false) return false;
string priority = GetPriorityString(mailMessage.Priority);
bool html = (mailMessage.BodyFormat == MailFormat.Html);
string[] sendBuffer;
string sendBufferstr;
if (eSmtp)
{
sendBuffer = new String[4];
sendBuffer[0] = "EHLO " + smtpServer + _crlf;
sendBuffer[1] = "AUTH LOGIN" + _crlf;
sendBuffer[2] = Base64Encode(username) + _crlf;
sendBuffer[3] = Base64Encode(password) + _crlf;
if (!Dialog(sendBuffer, "，。")) return false;
}
else
{
sendBufferstr = "HELO " + smtpServer + _crlf;
if (!Dialog(sendBufferstr, "")) return false;
}
sendBufferstr = "MAIL FROM:<" + username + ">" + _crlf;
if (!Dialog(sendBufferstr, "，")) return false;
sendBuffer = new string[mailMessage.Recipients.Count];
for (int i = 0; i < mailMessage.Recipients.Count; i++)
{
sendBuffer[i] = "RCPT TO:<" + (string)mailMessage.Recipients[i] + ">" + _crlf;
}
if (!Dialog(sendBuffer, "")) return false;
sendBufferstr = "DATA" + _crlf;
if (!Dialog(sendBufferstr, "")) return false;
sendBufferstr = "From:" + mailMessage.FromName + "<" + mailMessage.From + ">" + _crlf;
if (mailMessage.Recipients.Count == 0)
{
return false;
}
else
{
sendBufferstr += "To:=?" + mailMessage.Charset.ToUpper() + "?B?" + Base64Encode((string)mailMessage.Recipients[0]) + "?=" + "<" + (string)mailMessage.Recipients[0] + ">" + _crlf;
}
sendBufferstr += (string.IsNullOrEmpty(mailMessage.Subject) ? "Subject:" : ((mailMessage.Charset == "") ? ("Subject:" + mailMessage.Subject) : ("Subject:" + "=?" + mailMessage.Charset.ToUpper() + "?B?" + Base64Encode(mailMessage.Subject) + "?="))) + _crlf;
sendBufferstr += "X-Priority:" + priority + _crlf;
sendBufferstr += "X-MSMail-Priority:" + priority + _crlf;
sendBufferstr += "Importance:" + priority + _crlf;
sendBufferstr += "X-Mailer: Lion.Web.Mail.SmtpMail Pubclass [cn]" + _crlf;
sendBufferstr += "MIME-Version: 1.0" + _crlf;
if (mailMessage.Attachments.Count != 0)
{
sendBufferstr += "Content-Type: multipart/mixed;" + _crlf;
sendBufferstr += " boundary=\"=====" + (html ? "001_Dragon520636771063_" : "001_Dragon303406132050_") + "=====\"" + _crlf + _crlf;
}
if (html)
{
if (mailMessage.Attachments.Count == 0)
{
sendBufferstr += "Content-Type: multipart/alternative;" + _crlf;
sendBufferstr += " boundary=\"=====003_Dragon520636771063_=====\"" + _crlf + _crlf;
sendBufferstr += "This is a multi-part message in MIME format." + _crlf + _crlf;
}
else
{
sendBufferstr += "This is a multi-part message in MIME format." + _crlf + _crlf;
sendBufferstr += "--=====001_Dragon520636771063_=====" + _crlf;
sendBufferstr += "Content-Type: multipart/alternative;" + _crlf;
sendBufferstr += " boundary=\"=====003_Dragon520636771063_=====\"" + _crlf + _crlf;
}
sendBufferstr += "--=====003_Dragon520636771063_=====" + _crlf;
sendBufferstr += "Content-Type: text/plain;" + _crlf;
sendBufferstr += ((mailMessage.Charset == "") ? (" charset=\"iso-8859-1\"") : (" charset=\"" + mailMessage.Charset.ToLower() + "\"")) + _crlf;
sendBufferstr += "Content-Transfer-Encoding: base64" + _crlf + _crlf;
sendBufferstr += Base64Encode("，") + _crlf + _crlf;
sendBufferstr += "--=====003_Dragon520636771063_=====" + _crlf;
sendBufferstr += "Content-Type: text/html;" + _crlf;
sendBufferstr += ((mailMessage.Charset == "") ? (" charset=\"iso-8859-1\"") : (" charset=\"" + mailMessage.Charset.ToLower() + "\"")) + _crlf;
sendBufferstr += "Content-Transfer-Encoding: base64" + _crlf + _crlf;
sendBufferstr += Base64Encode(mailMessage.Body) + _crlf + _crlf;
sendBufferstr += "--=====003_Dragon520636771063_=====--" + _crlf;
}
else
{
if (mailMessage.Attachments.Count != 0)
{
sendBufferstr += "--=====001_Dragon303406132050_=====" + _crlf;
}
sendBufferstr += "Content-Type: text/plain;" + _crlf;
sendBufferstr += ((mailMessage.Charset == "") ? (" charset=\"iso-8859-1\"") : (" charset=\"" + mailMessage.Charset.ToLower() + "\"")) + _crlf;
sendBufferstr += "Content-Transfer-Encoding: base64" + _crlf + _crlf;
sendBufferstr += Base64Encode(mailMessage.Body) + _crlf;
}
if (mailMessage.Attachments.Count != 0)
{
for (int i = 0; i < mailMessage.Attachments.Count; i++)
{
string filepath = (string)mailMessage.Attachments[i];
sendBufferstr += "--=====" + (html ? "001_Dragon520636771063_" : "001_Dragon303406132050_") + "=====" + _crlf;
sendBufferstr += "Content-Type: text/plain;" + _crlf;
sendBufferstr += " name=\"=?" + mailMessage.Charset.ToUpper() + "?B?" + Base64Encode(filepath.Substring(filepath.LastIndexOf("\\") + 1)) + "?=\"" + _crlf;
sendBufferstr += "Content-Transfer-Encoding: base64" + _crlf;
sendBufferstr += "Content-Disposition: attachment;" + _crlf;
sendBufferstr += " filename=\"=?" + mailMessage.Charset.ToUpper() + "?B?" + Base64Encode(filepath.Substring(filepath.LastIndexOf("\\") + 1)) + "?=\"" + _crlf + _crlf;
sendBufferstr += GetStream(filepath) + _crlf + _crlf;
}
sendBufferstr += "--=====" + (html ? "001_Dragon520636771063_" : "001_Dragon303406132050_") + "=====--" + _crlf + _crlf;
}
sendBufferstr += _crlf + "." + _crlf;
if (!Dialog(sendBufferstr, "")) return false;
sendBufferstr = "QUIT" + _crlf;
if (!Dialog(sendBufferstr, "")) return false;
_networkStream.Close();
_tcpClient.Close();
return true;
}