Gmail: How to send an email programmatically

Question

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

Answer 1

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

Answer 2

Try using port number 465 for SSL connection

Answer 3

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);
}

Answer 4

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.

Answer 5

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.

Answer 6

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.