public void TestMailMessage()
{
var message = new MailMessage();
Assert.AreEqual(0, message.Attachments.Count, "初始化MailAttachments");
Assert.AreEqual(MailFormat.Text, message.BodyFormat, "邮件格式");
Assert.AreEqual("GB2312", message.Charset, "缺省的字符集");
}
public void TestSendMail()
{
SmtpMail.SmtpServer = "smtp.126.com";
var mail = new MailMessage {From = "*****@*****.**", FromName = "陈春伟"};
mail.AddRecipients("*****@*****.**");
mail.Subject = "主题：测试邮件";
mail.BodyFormat = MailFormat.Text;
mail.Body = "测试的内容.";
//mail.Attachments.Add("c:\\test.txt");
SmtpMail.Send(mail, "*****@*****.**", "");//请填写自己的测试邮件帐号
}
public static bool Send(MailMessage mailMessage, string username, string password)
{
var helper = new SmtpServerHelper();
return helper.SendEmail(SmtpServer, 25, username, password, mailMessage);
}
/// <summary>
/// 发送电子邮件，SMTP服务器需要身份验证
/// </summary>
/// <param name="smtpServer"></param>
/// <param name="port"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <param name="mailMessage"></param>
/// <returns></returns>
public bool SendEmail(string smtpServer, int port, string username, string password, MailMessage mailMessage)
{
return SendEmail(smtpServer, port, false, username, password, mailMessage);
}
/// <summary>
/// 发送电子邮件，SMTP服务器不需要身份验证
/// </summary>
/// <param name="smtpServer"></param>
/// <param name="port"></param>
/// <param name="mailMessage"></param>
/// <returns></returns>
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)//测试连接服务器是否成功
return false;
string priority = GetPriorityString(mailMessage.Priority);
bool html = (mailMessage.BodyFormat == MailFormat.Html);
string[] sendBuffer;
string sendBufferstr;
//进行SMTP验证，现在大部分SMTP服务器都要认证
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, "SMTP服务器验证失败，请核对用户名和密码。"))
return false;
}
else
{//不需要身份认证
sendBufferstr = "HELO " + smtpServer + CRLF;
if (!Dialog(sendBufferstr, ""))
return false;
}
//发件人地址
sendBufferstr = "MAIL FROM:<" + mailMessage.From + ">" + CRLF;
if (!Dialog(sendBufferstr, "发件人地址错误，或不能为空"))
return false;
//收件人地址
sendBuffer = new string[mailMessage.Recipients.Count];
for (var i = 0; i < mailMessage.Recipients.Count; i++)
{
sendBuffer[i] = "RCPT TO:<" + (string)mailMessage.Recipients[i] + ">" + CRLF;
}
if (!Dialog(sendBuffer, "收件人地址有误"))
return false;
/*
SendBuffer=new string[10];
for(int i=0;i<RecipientBCC.Count;i++)
{
SendBuffer[i]="RCPT TO:<" + RecipientBCC[i].ToString() +">" + CRLF;
}
if(!Dialog(SendBuffer,"密件收件人地址有误"))
return false;
*/
sendBufferstr = "DATA" + CRLF;
if (!Dialog(sendBufferstr, ""))
return false;
//发件人姓名
sendBufferstr = "From:" + mailMessage.FromName + "<" + mailMessage.From + ">" + CRLF;
//if(ReplyTo.Trim()!="")
//{
// SendBufferstr+="Reply-To: " + ReplyTo + CRLF;
//}
//SendBufferstr+="To:" + ToName + "<" + Recipient[0] +">" +CRLF;
//至少要有一个收件人
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+="CC:";
//for(int i=0;i<Recipient.Count;i++)
//{
// SendBufferstr+=Recipient[i].ToString() + "<" + Recipient[i].ToString() +">,";
//}
//SendBufferstr+=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;//内容格式和分隔符
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;//内容格式和分隔符
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("邮件内容为HTML格式，请选择HTML方式查看") + 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;
}
//SendBufferstr += "Content-Transfer-Encoding: base64"+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: application/octet-stream"+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;//内容结束
if (!Dialog(sendBufferstr, "错误信件信息"))
return false;
sendBufferstr = "QUIT" + CRLF;
if (!Dialog(sendBufferstr, "断开连接时错误"))
return false;
_networkStream.Close();
_tcpClient.Close();
return true;
}
