I created console application for sending Email
public static void sendEmail(string email, string body)
{
if (String.IsNullOrEmpty(email))
return;
try
{
MailMessage mail = new MailMessage();
mail.To.Add(email);
mail.From = new MailAddress("test#gmail.com");
mail.Subject = "sub";
mail.Body = body;
mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
smtp.Credentials = new System.Net.NetworkCredential("test#gmail.com", "admin#1234"); // ***use valid credentials***
smtp.Port = 587;
//Or your Smtp Email ID and Password
smtp.EnableSsl = true;
smtp.Send(mail);
}
catch (Exception ex)
{
}
}
I am using correct credential of my gmail account.
Is there any settings I need to do for GMail Account?
It's likely that you're actually getting this error, it's just suppressed in some way by you being in a console app.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.
Change this piece of code and add one extra line. It's important that it goes before the credentials.
smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
// ** HERE! **
smtp.UseDefaultCredentials = false;
// ***********
smtp.Credentials = new System.Net.NetworkCredential("test#gmail.com", "admin#1234"); // ***use valid credentials***
smtp.Port = 587;
You'll also need to go here and enable less secure apps.
https://www.google.com/settings/security/lesssecureapps
Or if you have two step authentication on your account you'll need to set an app specific password, then use that password in your code instead of your main account password.
I've just tested and verified this works on my two step account. Hell, here's my entire method copied right out of LINQPad in case it helps (with removed details of course).
var fromAddress = new MailAddress("myaccount#gmail.com", "My Name");
var toAddress = new MailAddress("test.address#email.com", "Mr Test");
const string fromPassword = "tbhagpfpcxwhkczd";
const string subject = "test";
const string body = "HEY, LISTEN!";
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);
}
Edit:
Using attachments:
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
Attachment attachment = new Attachment(filePath);
message.Attachments.Add(attachment);
smtp.Send(message);
}
In my experienced using C# SMTP Client, there is a certain steps to follow in the code (see code snippet below)
smtpClient.Host = "smtp.gmail.com";
smtpClient.Port = 587;
smtpClient.EnableSsl = true;
smtpClient.UseDefaultCredentials = false;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.Credentials = new NetworkCredential("account#gmail.com", "secretPassword");
smtpClient.Send(mail);
Related
I am trying to sent email from my web application (an e-commerce site). i enabled "Less secure app access" from my mail account. And enabled IMAP also from mail setting. but still sending email is blocked or failed. What can be the possible reason for this? or i missing something in the code section?
here is code:
var client = new SmtpClient("smtp.gmail.com", 587)
{
EnableSsl = true,
Credentials = new NetworkCredential(userName, password)
};
var sender = new MailAddress(senderEmail, senderName);
var receiver = new MailAddress(receiverEmail);
var message = new MailMessage(#sender, receiver);
IIRC then I followed this guidance to enable gmail smtp for my application.
Important is to have set two factor authentication for the account.
Create app password and use it in your application
then you use it as
MailMessage mm = new MailMessage();
mm.From = new MailAddress(<your-gmail>);
mm.To.Add(address);
mm.Subject = subject;
mm.Body = body;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Port = 587;
smtp.EnableSsl = true;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new NetworkCredential(<your-gmail>, <app-password>);
smtp.Send(mm);
I am trying to send email using office365 e-mail account that has enabled the two-factor authentication. It gives an authentication failed error. For email accounts that have not enabled the two-factor authentication works fine. How to resolve this issue?
using (SmtpClient client = new SmtpClient())
{
client.Port = Convert.ToInt32(appSettings["Port"]);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.Host = "smtp.office365.com";
client.EnableSsl = true;
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(SenderMailAddress, SenderMailPassword);
email.Subject = String.Format("{0}", txtMailSubject.Text);
//
email.Body = String.Format("{0}", text);
email.IsBodyHtml = true;
client.Send(email);
}
Error message is
System.Net.Mail.SmtpException: The SMTP server requires a secure
connection or the client was not authenticated. The server response
was: 5.7.1 Client was not authenticated at
System.Net.Mail.MailCommand.CheckResponse
You have to create an application password, then use the new application password in your code, check this link
MailAddress from = new MailAddress("fromid");
MailAddress to = new MailAddress("toID");
MailMessage message = new MailMessage(from, to);
message.Subject = "Using the new SMTP client.";
message.Body = #"The sensor get offline ...";
SmtpClient client = new SmtpClient(server);
client.Host = "hostID";
client.Port = 587;
client.EnableSsl = true;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = true;
client.Credentials = new NetworkCredential
{
UserName = "**********",
Password = "*************,
};
Console.WriteLine("Sending an email message to {0} using the SMTPhost {1}.");
When I send mail to my gmail account, it shows below error.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Authentication required...
code I am using is below
MailMessage m = new MailMessage();
SmtpClient sc = new SmtpClient();
try
{
m.From = new MailAddress("me#gmail.com");
m.To.Add("me#gmail.com");
m.Subject = "This is a Test Mail";
m.IsBodyHtml = true;
m.Body = "test gmail";
sc.Host = "smtp.gmail.com";
sc.Port = 587;
sc.Credentials = new System.Net.NetworkCredential("me#gmail.com", "passward");
sc.UseDefaultCredentials = true;
sc.EnableSsl = true;
sc.Send(m);
Response.Write("Email Send successfully");
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
Just tried your code, had to fiddle with a couple things but was sent this. Funny because I have done this previously using Gmail smtp (couple years back). But it looks like they are now verifying apps that use their platform.
Either use another smtp server that you are signed up to, or use your own. (there must be a test one that is available online??). Pretty sure sendgrid do a free trial.
using System.Net;
using System.Net.Mail;
string smtpAddress = "smtp.mail.yahoo.com";
int portNumber = 587;
bool enableSSL = true;
string emailFrom = "email#yahoo.com";
string password = "abcdefg";
string emailTo = "someone#domain.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);
}
}
Please try this this should work for you
Thank you
I am getting following error message while sending email using gmailD.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.
MailMessage objMailMessage = new MailMessage();
objMailMessage.From = new MailAddress("suraj.podval#in.vsolutions.com");
objMailMessage.To.Add(new MailAddress("itslaxman#gmail.com"));
objMailMessage.Subject = "Test";
objMailMessage.Body = "Test Test";
objMailMessage.IsBodyHtml = true;
SmtpClient smtpClient = new SmtpClient();
smtpClient.Host = "smtp.gmail.com";
smtpClient.Port = 587;
smtpClient.EnableSsl = true;
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = new System.Net.NetworkCredential("user#gmail.com", "password");
smtpClient.Send(objMailMessage);
Try changing the port to 465
SmtpMail oMail = new SmtpMail("TryIt");
SmtpClient oSmtp = new SmtpClient();
// Your gmail email address
oMail.From = "gmailid#gmail.com";
// Set recipient email address
oMail.To = "support#emailarchitect.net";
// Set email subject
oMail.Subject = "test email from gmail account";
// Set email body
oMail.TextBody = "this is a test email sent from c# project with gmail.";
// Gmail SMTP server address
SmtpServer oServer = new SmtpServer("smtp.gmail.com");
// If you want to use direct SSL 465 port,
// please add this line, otherwise TLS will be used.
// oServer.Port = 465;
// detect SSL/TLS automatically
oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;
// Gmail user authentication
// For example: your email is "gmailid#gmail.com", then the user should be the same
oServer.User = "gmailid#gmail.com";
oServer.Password = "yourpassword";
check below link: http://www.emailarchitect.net/easendmail/kb/csharp.aspx?cat=2
Possible Exact Duplicate: Sending Email in C#.NET Through Gmail
Hi,
I'm trying to send an email using gmail:
I tried various examples that I found on this site and other sites but I always get the same error:
Unable to connect to the remote server -- > System.net.Sockets.SocketException: No connection could be made because the target actively refused it 209.85.147.109:587
public static void Attempt1()
{
var client = new SmtpClient("smtp.gmail.com", 587)
{
Credentials = new NetworkCredential("MyEmailAddress#gmail.com", "MyPassWord"),
EnableSsl = true
};
client.Send("MyEmailAddress#gmail.com", "some.email#some.com", "test", "testbody");
}
Any ideas?
UPDATE
More details.
Maybe I should say what other attempts I made that gave me the same error:
(Note when i didn't specify a port it tryed port 25)
public static void Attempt2()
{
var fromAddress = new MailAddress("MyEmailAddy#gmail.com", "From Name");
var toAddress = new MailAddress("MyEmailAddy#dfdf.com", "To Name");
const string fromPassword = "pass";
const string subject = "Subject";
const string body = "Body";
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); }
}
public static void Attempt3()
{
MailMessage mail = new MailMessage();
mail.To.Add("MyEmailAddy#dfdf.com");
mail.From = new MailAddress("MyEmailAddy#gmail.com");
mail.Subject = "Email using Gmail";
string Body = "Hi, this mail is to test sending mail" +
"using Gmail in ASP.NET";
mail.Body = Body;
mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Credentials = new System.Net.NetworkCredential
("MyEmailAddy#gmail.com", "pass");
smtp.EnableSsl = true;
smtp.Send(mail);
}
I'm using the following code:
SmtpClient sc = new SmtpClient("smtp.gmail.com");
NetworkCredential nc = new NetworkCredential("username", "password");//username doesn't include #gmail.com
sc.UseDefaultCredentials = false;
sc.Credentials = nc;
sc.EnableSsl = true;
sc.Port = 587;
try {
sc.Send(mm);
} catch (Exception ex) {
EventLog.WriteEntry("Error Sending", EventLogEntryType.Error);
}
With the following code, it will work successfully.
MailMessage mail = new MailMessage();
mail.From = new MailAddress("abc#mydomain.com", "Enquiry");
mail.To.Add("abcdef#yahoo.com");
mail.IsBodyHtml = true;
mail.Subject = "Registration";
mail.Body = "Some Text";
mail.Priority = MailPriority.High;
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
//smtp.UseDefaultCredentials = true;
smtp.Credentials = new System.Net.NetworkCredential("xyz#gmail.com", "<my gmail pwd>");
smtp.EnableSsl = true;
//smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.Send(mail);
But, there is a problem with using gmail. The email will be sent successfully, but the recipient inbox will have the gmail address in the 'from address' instead of the 'from address' mentioned in the code.
To solve this, please follow the steps mentioned at the following link.
http://karmic-development.blogspot.in/2013/10/send-email-from-aspnet-using-gmail-as.html
before following all the above steps, you need to authenticate your gmail account to allow access to your application and also the devices. Please check all the steps for account authentication at the following link:
http://karmic-development.blogspot.in/2013/11/allow-account-access-while-sending.html
Here is my connection resource to connect to Gmail from Java
<!-- Java Mail -->
<Resource name="mail/MailSession" auth="Container" type="javax.mail.Session"
mail.debug="true"
mail.transport.protocol="smtp"
mail.smtp.host="smtp.gmail.com"
mail.smtp.user="youremail#gmail.com"
mail.smtp.password="yourpassword"
mail.smtp.port="465"
mail.smtp.starttls.enable="true"
mail.smtp.auth="true"
mail.smtp.socketFactory.port="465"
mail.smtp.socketFactory.class="javax.net.ssl.SSLSocketFactory"
mail.smtp.socketFactory.fallback="false"
mail.store.protocol="pop3"
mail.pop3.host="pop.gmail.com"
mail.pop3.port="995" />
Connect your Gmail account on Secure ports (465 for SMTP and 995 for POP3) and use any .NET SSL Factory available to connect securely to Gmail.
Are you sure that your GMail account is set up to allow POP/SMTP connections? It is a configurable option that you can turn on and off as you choose.
You can see my blog post here at http://codersatwork.wordpress.com/2010/02/14/sending-email-using-gmail-smtp-server-and-spring-mail/ which explains how to use spring mail for sending email via gmail smtp server.
I used java but you can see the configuration and use that in your c# code.
Try using port number 465 for SSL connection