Send Email from your GMAIL account using ASP.Net and C#
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You can use your gmail account to send emails from ASP.Net and C#, using SMTP. You need to set SSL credentials. This is not straight forward like a simple SMTP email. After searching for long hours I was able to find a solution. Use following class to send emails using your GMAIL account.

Please supply your gmail user name and password in following class where needed.
using System.Web.Mail;
using System;
public class MailSender
{
    public static bool SendEmail(
        string pGmailEmail, 
        string pGmailPassword, 
        string pTo, 
        string pSubject,
        string pBody, 
        System.Web.Mail.MailFormat pFormat,
        string pAttachmentPath)
    {
    try
    {
        System.Web.Mail.MailMessage myMail = new System.Web.Mail.MailMessage();
        myMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/smtpserver",
                          "smtp.gmail.com");
        myMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/smtpserverport",
                          "465");
        myMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/sendusing",
                          "2");
        //sendusing: cdoSendUsingPort, value 2, for sending the message using 
        //the network.

        //smtpauthenticate: Specifies the mechanism used when authenticating 
        //to an SMTP 
        //service over the network. Possible values are:
        //- cdoAnonymous, value 0. Do not authenticate.
        //- cdoBasic, value 1. Use basic clear-text authentication. 
        //When using this option you have to provide the user name and password 
        //through the sendusername and sendpassword fields.
        //- cdoNTLM, value 2. The current process security context is used to 
        // authenticate with the service.
        myMail.Fields.Add
        ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate","1");
        //Use 0 for anonymous
        myMail.Fields.Add
        ("http://schemas.microsoft.com/cdo/configuration/sendusername",
            pGmailEmail);
        myMail.Fields.Add
        ("http://schemas.microsoft.com/cdo/configuration/sendpassword",
             pGmailPassword);
        myMail.Fields.Add
        ("http://schemas.microsoft.com/cdo/configuration/smtpusessl",
             "true");
        myMail.From = pGmailEmail;
        myMail.To = pTo;
        myMail.Subject = pSubject;
        myMail.BodyFormat = pFormat;
        myMail.Body = pBody;
        if (pAttachmentPath.Trim() != "")
        {
            MailAttachment MyAttachment = 
                    new MailAttachment(pAttachmentPath);
            myMail.Attachments.Add(MyAttachment);
            myMail.Priority = System.Web.Mail.MailPriority.High;
        }

        System.Web.Mail.SmtpMail.SmtpServer = "smtp.gmail.com:465";
        System.Web.Mail.SmtpMail.Send(myMail);
        return true;
    }
    catch (Exception ex)
    {
        throw;
    }
}
}


Example usage of this class,

EmailLib.SendEmail.SendEmail("your_gmail_id", 
                             "your_gmail_password", 
                             "to_email@anydomain.com", 
                             "This is email subject" , 
                             "This is email body", 
                             Web.Mail.MailFormat.Text, 
                             "Physical path to your Attachment")

Note: If you do not want to attach a file with email, supply blank string as "".

Comments/Questions

Add New Comment/Question

Hi Shabdar,

I am new to ASP.Net developement and I want to use my gmail account when sending password retrieval emails. I think the standard controls that visual web developer 2008 provide are really neat but I cant get the app to send the mail via gmail's SMTP.

How should i use your code in such a way that will allow me to send the mails that the controls generate via gmails smtp?
=> Gavin Lumsden (Sunday 20-Apr-08 08:38 AM)
Reply
Hi Shabdar,

I want to send email using my gmail account from my laptop. It is connected to the internet, but there is no SMTP service running on it. My question is:
Do i need SMTP service to be running on my laptop to be able to use your code to send email (via gmail account) ?
=> vivek (Tuesday 06-May-08 09:05 AM)
Reply
No, you don't need SMTP service running on your laptop/computer/server.
=> Shabdar (Tuesday 06-May-08 12:18 PM)
Reply
this was a fantastic article, it worked for me on the first try, however with VS 2008 it tells me some of the items are obsolete (works just find nonetheless)
=> jeff siegel (Saturday 10-May-08 12:39 AM)
Reply
You'have just solved me a problem of 2 days - thank you! where did you find this solution??
=> inna (Monday 19-May-08 12:33 PM)
Reply
Nice coding....
=> sammy (Thursday 07-Aug-08 05:04 AM)
Reply
Marvelous code
i got what i was looking for, thanks you are a gem
=> Gurpreet Singh (Friday 22-Aug-08 07:09 AM)
Reply
Hey,, Its a Gr8 code 4 me to handle email sending..

can u gv me idea how to send email from other than gmail.
or any email domain i can use to send email instead of inly using gmail.

Thanks in advance.
=> Praful (Friday 05-Sep-08 01:01 AM)
Reply
Hi i am tring to use this code in my hosting server.And it gives me "Mail sent successfully." but i am not recived the mail. Can you please help me out onthis.
ManiVannan.M
=> LiveMyResume (Tuesday 09-Sep-08 03:21 AM)
Reply
I downloaded your code project but when i click the send button i get a message "The transport failed to connect to the server" . plz suggest
=> surajit (Tuesday 16-Sep-08 02:43 AM)
Reply
when i trued ur code it is shiwing this error

"The transport failed to connect to the server"

kindly give me a solution for this problem

regards

revathy
=> Revathy (Wednesday 17-Sep-08 05:08 AM)
Reply
go to run>command prompt

and type : telnet smtp.gmail.com 465
if it fails then ur service provider is prohibiting the
use of of gmail.it might be the case i m not all that sure
but it might be the case.
=> surajit (Thursday 18-Sep-08 02:23 AM)
Reply
when i tried ur code it is showing this error

"The transport failed to connect to the server"

kindly give me a solution for this problem

regards

revathy
=> Revathy (Wednesday 17-Sep-08 05:11 AM)
Reply
Good article to send mails using gmailaccount.
goodjob . .
u
Thanks
Sudhir.M
=> sudhir malireddy (Thursday 25-Sep-08 12:57 AM)
Reply