first off, I have searched extensively, havent found a resoltion yet
I have tried using gmail (with normal and 2 way verification password and app access) and yahoo accounts, both which fail with the same exception
please note:
this is my error:
> System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.
at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)
at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint)
at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint)
at System.Net.Mail.SmtpClient.GetConnection()
at System.Net.Mail.SmtpClient.Send(MailMessage message)
--- End of inner exception stack trace ---
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at ConsoleApplication1.mail_core.sendMail() in c:\Users\CybeX\Documents\Visual Studio 2013\Projects\ConsoleApplication1\ConsoleApplication1\mail_core.cs:line 69
mail_core class:
class mail_core
{
//Mail components
static MailAddress from;
static string sfrom;
static string sto;
static MailAddress to;
static MailMessage newEmail;
//smtpServer
SmtpClient SMTPServer;
static string smtpServerAddress;
static int smtpServerPort;
static NetworkCredential cred;
static bool ssl;
public mail_core() { }
public void NewMail(string recieverEmail, string recieverName, string senderEmail, string senderName, string subject, string message, string attachementFile)
{
sto = recieverEmail;
sfrom = senderEmail;
//to = new MailAddress(recieverEmail, recieverName);
//from = new MailAddress(senderEmail, senderName);
//newEmail = new MailMessage(from, to);
//newEmail.Subject = subject;
//newEmail.Body = message;
newEmail = new MailMessage(sfrom, sto, subject, message);
if (!attachementFile.Equals(""))
{
newEmail.Attachments.Add(new Attachment(attachementFile));
}
}
public void smtpServerSettings(string server, int port, string EmailUsername, string EmailPassword, bool sslEnable)
{
smtpServerAddress = server;
smtpServerPort = port;
cred = new NetworkCredential(EmailUsername, EmailPassword);
ssl = sslEnable;
}
public void sendMail()
{
bool sent = false;
int count = 0;
while (!sent)
{
count++;
try
{
SMTPServer = new SmtpClient(smtpServerAddress);
SMTPServer.Port = smtpServerPort;
SMTPServer.UseDefaultCredentials = false;
SMTPServer.Credentials = cred;
SMTPServer.EnableSsl = ssl;
SMTPServer.DeliveryMethod = SmtpDeliveryMethod.Network;
SMTPServer.Send(newEmail);
sent = true;
}
catch (Exception x)
{
Console.WriteLine(x);
sent = false;
}
}
Console.WriteLine("tried times: {0}",count);
}
}
calling method:
static void Main(string[] args)
{
mail_core temp = new mail_core();
Console.WriteLine("ready?");
Console.ReadLine();
temp.NewMail("[email protected]", "xyz", "[email protected]", "abc", "a test email", "this is my first test email", "");
temp.smtpServerSettings("smtp.gmail.com", 465, "[email protected]", "2 step google verification password", true);
Console.WriteLine("sending...");
Console.WriteLine("=============================================================");
temp.sendMail();
Console.WriteLine("=============================================================");
//if (temp.sendMail())
//{
// Console.WriteLine("Mail sent :DDDD");
//}
//else Console.WriteLine("Mail not sent :(((");
Console.ReadLine();
}
adapted for your needs, hope it helps
class mail_core
{
//Mail components
static MailAddress sFrom;
static MailAddress sTo;
static MailMessage newEmail;
//smtpServer
SmtpClient SMTPServer;
static string smtpServerAddress;
static int smtpServerPort;
static NetworkCredential cred;
static bool ssl;
/*
*
* Proposed usage:
*
* mail_core NewEmailToSend = new mail_core();
temp.NewMail("[email protected]", "xyz", "[email protected]", "abc", "subject string", "body of email, this is my first test email regards", "");
temp.smtpServerSettings("smtp.gmail.com", 587, "[email protected]", "your password", true);
*/
public mail_core() { }
public void NewMail(string recieverEmail, string recieverName, string senderEmail, string senderName, string subject, string message, string attachementFile)
{
/*
* NewMail creates new mail message,
* Necassary parameters are: recieverEmail, senderEmail, subject, message
*
* Optional (can be empty) parameters: recieverName, senderName, attachmentFile
*/
sTo = new MailAddress(recieverEmail, recieverName);
sFrom = new MailAddress(senderEmail, senderName);
newEmail = new MailMessage(sFrom, sTo)
{
Subject = subject,
Body = message
};
if (!attachementFile.Equals("")) newEmail.Attachments.Add(new Attachment(attachementFile));
}
public void smtpServerSettings(string server, int port, string EmailUsername, string EmailPassword, bool sslEnable)
{
/*
* Enters SMTP (senders) server settings, if wrong, email wont send
* * Necassary are: ALL
*/
smtpServerAddress = server;
smtpServerPort = port;
cred = new NetworkCredential(EmailUsername, EmailPassword);
ssl = sslEnable;
}
public void addAttachment(string filename)
{
/*
* Add 1 or many attachments
*/
newEmail.Attachments.Add(new Attachment(filename));
}
public bool sendMail()
{
/*
* sends the email
* return true if sent, returns false if not sent
*/
try
{
SMTPServer = new SmtpClient(smtpServerAddress);
SMTPServer.Port = smtpServerPort;
SMTPServer.UseDefaultCredentials = false;
SMTPServer.Credentials = cred;
SMTPServer.EnableSsl = ssl;
SMTPServer.DeliveryMethod = SmtpDeliveryMethod.Network;
SMTPServer.Send(newEmail);
return true;
}
catch (Exception)
{
return false;
}
}
}