I can not send email please give solution

Question

0.00/5 (No votes)

See more:

C#

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;
using System.Configuration;


public partial class contact : System.Web.UI.Page
{

    protected void SendEmail()
    {
        try
        {
            MailMessage message = new MailMessage();
            MailAddress Sender = new MailAddress(ConfigurationManager.AppSettings["smtpUser"], "Inquiry");
            MailAddress receiver = new MailAddress("example@gmail.com", "Inquiry");
            SmtpClient smtp = new SmtpClient()
            {
                Host = ConfigurationManager.AppSettings["smtpServer"],
                Port = Convert.ToInt32(ConfigurationManager.AppSettings["smtpPort"]),
                EnableSsl = true,
                UseDefaultCredentials = false,
                Credentials = new System.Net.NetworkCredential(ConfigurationManager.AppSettings["smtpUser"], ConfigurationManager.AppSettings["smtpPass"])

            };
            message.From = Sender;
            message.To.Add(receiver);

            message.Subject = "New Inquiry @ " + txtname.Text;

            string body = "From: " + txtname.Text + " <br />";
            body += "Mobile Phone: " + txtmobile.Text + " <br />";
            body += "Message: " + txtmsg.Text + " <br />";

            message.Body = body;
            message.IsBodyHtml = true;
            smtp.Send(message);
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }

    }

    protected void Page_Load(object sender, EventArgs e)
    {

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

        SendEmail();
        ScriptManager.RegisterStartupScript(this, GetType(), "alertmsg", "alert('Thank you for Inquiry!Our team contact you soon');", true);
       
    }
}

What I have tried:

what is the problem in it
mail does not send
please help to solve this problem

Posted 10-May-16 20:04pm

Member 11811231

Updated 10-May-16 20:52pm

v2

Add a Solution

Comments

Michael_Davies 11-May-16 2:11am

What is the error message?

Member 11811231 11-May-16 2:15am

no error on it but email cant recive

Member 11811231 11-May-16 2:22am

ya bro i'm getting error something like that

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

Michael_Davies 11-May-16 2:35am

What are the values of smtpServer and smtpPort.

Jawad Ahmed Tanoli 11-May-16 2:21am

Check in your spam

Member 11811231 11-May-16 2:25am

nothing in spam bro. i have check it

Sergey Alexandrovich Kryukov 11-May-16 2:25am

We don't know what's in your configuration. Any line can have a mistake. We don't know your server, real account requisites; everything should be checked up. Use the debugger, by the way...
—SA

Suvendu Shekhar Giri 11-May-16 2:44am

Try with-
UseDefaultCredentials = true;

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

koolprasad2003 · Answer 1 · 2016-05-10T20:52:00

try below snippet, here I am sending mail using Gmail account
put your code always I TRY..CATCH block to get exact error

C#

MailMessage mail = new MailMessage();

//put mail from Email
 mail.From = new MailAddress("MailFrom@gmail.com");

//put mail to Email
 mail.To.Add(new MailAddress("MailTo@gmail.com"));


//you can add blank carbon copy mails here
//mail.Bcc.Add(new MailAddress("YOUR BCC EMAIL"));

//Get an attachment in attachment variable class
Attachment att = new Attachment("D:\\test.txt");

//add attachment to email
 mail.Attachments.Add(att);

//Put email subject
 mail.Subject = "Send Email with Gmail using ASP.NET";


//Put email body
 string Body = "Put your Email Body TEXT here";

// Here you can put HTML string if you want email to be sent in HTML format.   
 mail.Body = Body;
 mail.IsBodyHtml = true;

SmtpClient smtp = new SmtpClient();
smtp.Credentials = new System.Net.NetworkCredential("abc@gmail.com", "PASSWORD");

//keep ssl true if you have to send email with secured socket layer
smtp.EnableSsl = false;

smtp.Send(mail);

Exception points
There are so many factor that may affects your email sending code, here is list,
1. Firewall block port 587 (This is port for smtp gmail server)
2. Internet connection is not available on machine or internet connection has face some obstacles while pinging
3. Due to some typo mistake UserName and password may be get wrong
4. Enable SSL is block email sending
5. POP settings for smtp server in your Gmail account is disabled