error while sending an email

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Server Error in '/email' Application.

The remote certificate is invalid according to the validation procedure.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.

Source Error:

Line 35: smtp.EnableSsl = true;
Line 36: smtp.Send(mail);
Line 37:

Posted 7-Feb-13 18:54pm

Member 9794156

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Nandakishore G N 8-Feb-13 1:11am

post the code

Member 9794156 8-Feb-13 2:38am

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{

MailMessage mail = new MailMessage();
mail.To.Add("ex1@gmail.com");
mail.To.Add("ex2@gmail.com");
mail.From = new MailAddress("admin1@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.Port = 587;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new System.Net.NetworkCredential
("admin1@gmail.com", "password");
smtp.EnableSsl = true;
smtp.Send(mail);

}

}

joe_j 8-Feb-13 1:55am

please post the entire code that sends the email including all the smtp settings

Member 9794156 8-Feb-13 2:38am

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{

MailMessage mail = new MailMessage();
mail.To.Add("ex1@gmail.com");
mail.To.Add("ex2@gmail.com");
mail.From = new MailAddress("admin1@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.Port = 587;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new System.Net.NetworkCredential
("admin1@gmail.com", "password");
smtp.EnableSsl = true;
smtp.Send(mail);

}

}

Nandakishore G N 8-Feb-13 3:31am

if the above code is not wrong..then it is the problem of the gateway...try it using the datacard or any personal means..it works

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CShubham · Answer 1 · 2013-02-07T19:38:00

Solution 1

insert code in web.config

XML

<system.net>
    <settings>
      <servicePointManager checkCertificateName="true" checkCertificateRevocationList="false" />
    </settings>
  </system.net>

Posted 7-Feb-13 19:38pm

CShubham