private void cmdSend_Click(object sender, EventArgs e)
{
SMTP.SmtpDirect.SmtpServer= "10.108.7.138";
SMTP.SmtpDirect.SmtpServer = txtSmtp.Text;
SMTP.SmtpDirect.SmtpPort = Int32.Parse(txtPort.Text);
MailMessage message =new MailMessage();
message.Body = txtBody.Text;
message.From = txtFrom.Text;
message.To = txtTo.Text;
message.Subject = txtSubject.Text;
if (txtAttachment.Text != "")
{
MailAttachment attachment = new MailAttachment(txtAttachment.Text);
message.Attachments.Add(attachment);
}
if(SMTP.SmtpDirect.Send(message))
{
MessageBox.Show("Sent OK");
}
else
{
MessageBox.Show("Something BAD Happened!");
}
txtTo.Text = "";
txtFrom.Text = "";
txtSubject.Text = "";
txtAttachment.Text = "";
txtSmtp.Text = "";
txtPort.Text = "";
txtBody.Text = "";
}
public static bool Send(MailMessage message)
{
IPHostEntry IPhst = Dns.GetHostEntry(SmtpServer);
IPEndPoint endPt = new IPEndPoint(IPhst.AddressList[0], SmtpPort);
Socket s = new Socket(endPt.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
Console.WriteLine("connecting..........");
s.Connect(endPt);
Console.WriteLine("connected........");
string msg = "";
msg = msg + message.From + "\n";
msg = msg + message.To + "\n";
msg = msg + message.Subject + "\n";
int attch_count = 0;
if (message.Attachments.Count > 0)
attch_count = message.Attachments.Count;
msg = msg + attch_count + "\n";
if (attch_count > 0)
{
foreach (object o in message.Attachments)
{
MailAttachment a = o as MailAttachment;
//int pos = a.Filename.LastIndexOf('\\');
char[] delim = new char[1];
delim[0] = '\\';
string[] nameParts = a.Filename.Split(delim);
//nt count = a.Filename.Length - (pos+1);
//msg = msg + a.Filename.Substring(pos+1, count) + "\n";
string filename = nameParts[nameParts.Length - 1];
filename = Path.GetFileName(a.Filename);
msg = msg + filename + "\n";
}
}
msg = msg + message.Body;
Senddata(s, msg, false);
if (Check_Response(s, SMTPResponse.MSGLEN_SUCCESS))
{
//MessageBox.Show("length acked");
}
if (message.Attachments.Count > 0)
{
foreach (object o in message.Attachments)
{
MailAttachment a = o as MailAttachment;
byte[] binaryData;
if (a != null)
{
FileInfo f = new FileInfo(a.Filename);
FileStream fs = f.OpenRead();
int chunksize = 600000;
for (int j = 0; j < fs.Length; j = j + chunksize)
{
int count = chunksize;
if ( (j + count )> fs.Length)
count = (int)(fs.Length -(long)j);
int bytesRead = 0;
binaryData = null;
binaryData = new Byte[count];
fs.Seek((long)j, SeekOrigin.Begin);
while (bytesRead < count)
{
int bRead = fs.Read(binaryData, bytesRead, count - bytesRead);
bytesRead = bytesRead + bRead;
}
string base64String = System.Convert.ToBase64String(binaryData, 0, binaryData.Length);
SendMsgPart(s, base64String);
}
SendMsgPart(s, "__done__");
fs.Close();
}
}
}
return true;
}
static void Main(string[] args)
{
string UserEmailAddress;
int LineOfInput;
string UserPassword;
char Option;
while (true)
{
Console.WriteLine("Send E-mails.");
Console.WriteLine("Enter Recipient's E-mail address:");
MailAddress to = new MailAddress(Console.ReadLine()); //user inputs the revicers email address
Console.WriteLine("Enter Your E-mail Address:");
UserEmailAddress = Console.ReadLine();
MailAddress from = new MailAddress(UserEmailAddress);//senders email address
Console.WriteLine("Enter password:"******"Subject");
mail.Subject = Console.ReadLine();
Console.WriteLine("Your message here");
mail.Body = Console.ReadLine();
SmtpClient SMTP = new SmtpClient();
SMTP.Host = "smtp.gmail.com"; //can be changed to more sutable one
SMTP.Port = 587; //can be changed to more sutable one
SMTP.Credentials = new NetworkCredential(UserEmailAddress, UserPassword);
SMTP.EnableSsl = true;
Console.WriteLine("Choose option: 'a'(normal), 'b'(spam)");
Option = Console.ReadLine()[0];
if (Option == 'a')
{
Console.WriteLine("Sending E-mail");
SMTP.Send(mail);
UserPassword = null;//clear password.
}
else if (Option == 'b')
{
Console.WriteLine("Sending E-mails");
Console.WriteLine("The recipients going to have a bad time.");
while (1 < 2)
{
SMTP.Send(mail);//sends the email.
}
}
}//end of loop
}