I know there is a ton of questions and Answers about this and I did read allot but it seems all outdated.
So I have a mobile app that registers a use to a cloud service and then sends a welcome email to the user's email address.
The service part is done in C# WCF Witch also sends the mail
Below is the prototype function for testing for the mail:
static void SendMail()
{
var fromAddress = new MailAddress("gmail account", "App name");
var toAddress = new MailAddress("User email", "User account");
const string fromPassword = "gmail password";
const string subject = "test";
const string body = "Hey now!!";
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword),
Timeout = 20000
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}
Console.WriteLine("Sent");
Console.ReadLine();
}
My code used all the things suggested by others. But I still get the error message
An unhandled exception of type 'System.Net.Mail.SmtpException' occurred in System.dll
Additional information: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Mail;
using System.Threading;
using System.ComponentModel;
using System.IO;
using System.Net.Mime;
namespace Invoice.WCFService
{
public class EmailSenser
{
public static bool SendEmail(string toMail, Stream stream, string mailBody)
{
bool sent = false;
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress("email#gmail.com");
mail.To.Add(toMail);
mail.Subject = "Invoice";
//mail.Body = "Please, see attached file";
mail.Body = mailBody;
mail.SubjectEncoding = System.Text.Encoding.UTF8;
mail.BodyEncoding = System.Text.Encoding.UTF8;
ContentType ct = new ContentType(MediaTypeNames.Application.Pdf);
Attachment attachment = new Attachment(stream, ct);
ContentDisposition disposition = attachment.ContentDisposition;
disposition.FileName = DateTime.Now.ToString("dd-MM-yyyy") + ".pdf";
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential("email#gmail.com", "password");
SmtpServer.EnableSsl = true;
try
{
SmtpServer.Send(mail);
sent = true;
}
catch (Exception sendEx)
{
System.Console.Write("Error: " + sendEx.Message.ToString());
sent = false;
}
finally
{
//DBContext
}
return sent;
}
}
}
It's my fully working code
Use this code...
static void SendMail()
{
var fromAddress = new MailAddress("fromMail", "App name");
var toAddress = new MailAddress("tomail","app");
const string fromPassword = "passwrd";
const string subject = "test";
const string body = "Hey now!!";
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword),
Timeout = 20000,
};
using (var message = new MailMessage(fromAddress, toAddress))
{
message.Subject = subject;
message.Body = body;
smtp.Send(message);
}
Console.WriteLine("Sent");
Console.ReadLine();
}
Related
I'm trying to set up an automatic email sender.
My smtp server requires authentication. I'm not using ssl but still I'm getting the following response from server:
The server response was: 5.7.1 You are not authorized, authentication is required.
And if I check on the server it got an empty username.
Here is my code:
public void email_send(string mailadress,string docname)
{
string host = "myhost";
string username = "user";
string password = "password";
int port = 625;
var nc = new NetworkCredential(username, password);
var auth = nc.GetCredential(host,port,"Basic");
using (var mail = new MailMessage())
using (var SmtpServer = new SmtpClient())
{
SmtpServer.Host = host;
SmtpServer.Port = port;
SmtpServer.Credentials = auth;
mail.From = new MailAddress("fromadress");
mail.To.Add(mailadress);
mail.Subject = "Subject";
mail.Body = "Body";
Attachment attachment;
attachment = new Attachment("D:/" + docname + ".pdf");
mail.Attachments.Add(attachment);
mail.IsBodyHtml = true;
SmtpServer.DeliveryFormat = SmtpDeliveryFormat.International;
SmtpServer.DeliveryMethod = SmtpDeliveryMethod.Network;
SmtpServer.Send(mail);
}
}
ERROR: Service not available, closing transmission channel. The server response was: Resources temporarily unavailable - Please try again later
private void button1_Click(object sender, EventArgs e)
{
string smtpAddress = "smtp.mail.yahoo.com";
int portNumber = 587;
bool enableSSL = true;
string emailFrom = "mail#yahoo.com";
string password = "mailpass";
string emailTo = "sendemail#yahoo.com";
string subject = "Hello";
string body = "Hello, I'm just writing this to say Hi!";
using (MailMessage mail = new MailMessage())
{
mail.From = new MailAddress(emailFrom);
mail.To.Add(emailTo);
mail.Subject = subject;
mail.Body = body;
//mail.IsBodyHtml = true;
// Can set to false, if you are sending pure text.
// mail.Attachments.Add(new Attachment("C:\\SomeFile.txt"));
//mail.Attachments.Add(new Attachment("C:\\SomeZip.zip"));
using (SmtpClient smtp = new SmtpClient(smtpAddress, portNumber))
{
smtp.Credentials = new NetworkCredential(emailFrom, password);
smtp.EnableSsl = enableSSL;
smtp.Send(mail);
}
}
}
What should I do?
You need to make sure an external application has permission to send emails through your email before you can proceed.
for debugging purposes, I have globally handled all exceptions. Whenever an exception occurs, I silently handle it, and want to send myself an e-mail with the error details, so I can address this issue.
I have two emails, email1#gmail.com, and email2#gmail.com...
I have attempted using this code to send myself an e-mail, but it is not working.
string to = "email1#gmail.com";
string from = "email2#gmail.com";
string subject = "an error ocurred";
string body = e.ToString();
MailMessage message = new MailMessage(from, to, subject, body);
SmtpClient client = new SmtpClient("smtp.google.com");
client.Timeout = 100;
client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
I have tried countless other pieces of code but I have no idea how to do it. Does anyone have a solid solution for this? Thanks a bunch.
This has to work. See more info here: Sending email in .NET through Gmail
using System.Net;
using System.Net.Mail;
//...
var fromAddress = new MailAddress("alextodorov01#abv.bg", "From Name");
var toAddress = new MailAddress("kozichka01#abv.bg", "To Name");
const string fromPassword = "fromPassword";
const string subject = "an error ocurred";
const string body = e.ToString();
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}
//...
I am trying to send Emails from my custom address to users using C# and googles smtp service. My problem is that when the when the user receives the message it is displayed admin#customDomain.co.uk <myAddress#gmail.com> in the from section of the email.
My problem is that I want the user to see admin#customDomain.co.uk <admin#customDomain.co.uk>. Is this possible using the google service? Or should I look at some other option? If so what?
I have tried the answers on this thread but non worked and I also found this google blog post but I cant work out how it can solve my issue
My Code
string SmtpAddress = "smtp.gmail.com";
int MyPort = 587;
bool enableSSL = true;
string MyPassword = "somePassword";
string MyUsername = "aUsername";
public string EmailFrom = "admin#customDomain.co.uk";
public string Subject = "Test Subject";
public void Send(string body, BL.Customer customer)
{
using (MailMessage message = new MailMessage())
{
message.To.Add(new MailAddress(customer.EmailAddress));
if (!String.IsNullOrEmpty(customer.SCEmailAddress))
{
//message.To.Add(new MailAddress(customer.SCEmailAddress));
}
message.From = new MailAddress(EmailFrom, EmailFrom);
message.Subject = Subject;
message.Body = string.Format(body);
message.IsBodyHtml = true;
using (var smtp = new SmtpClient())
{
var credential = new NetworkCredential
{
UserName = MyUsername,
Password = MyPassword
};
smtp.Credentials = credential;
smtp.Host = SmtpAddress;
smtp.Port = MyPort;
smtp.EnableSsl = enableSSL;
try
{
smtp.Send(message);
}
catch (SmtpException se)
{
throw se;
}
}
}
}
I have write C# code to send mail (my company mail). I tried with gmail and it working but with my company mail is not.
I sure the smtp server is running and port 465 opened since I can send mail by outlook 2k7 with the same account, telnet smtp.domain 465 ok.
When i run the code it throw exception "System.Net.Mail.SmtpException: The operation has time out."
Here is my c# code:
var fromAddress = new MailAddress("ID#domain", "Display Name");
var toAddress = new MailAddress("ID#domain", "Display Name");
const string subject = "Test mail";
const string body = "Test mail";
var smtp = new SmtpClient
{
Host = "smtp.domain",
Port = 465,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential("ID", "pass"),
Timeout=15000
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body,
})
{
try
{
smtp.Send(message);
MessageBox.Show("OK");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
Any one know or have same problem that fixed please help me. Thanks so much!
Try changing setting EnableSsl = false in your SmtpClient instance.
You can change this code and reuse this code:
public static void sendEmail(string address, string subject, string message)
{
string email = "yourEmail";
string password = "yourPass";
var loginInfo = new NetworkCredential(email, password);
var msg = new MailMessage();
var smtpClient = new SmtpClient("smtp.gmail.com", portNumber);
msg.From = new MailAddress(email);
msg.To.Add(new MailAddress(address));
msg.Subject = subject;
msg.Body = message;
msg.IsBodyHtml = true;
smtpClient.EnableSsl = true;
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = loginInfo;
smtpClient.Send(msg);
}