Error sending mail in .net

[raj200809]

when i m sending mail i received error from symantec Antivirus" Your email message was unable to be sent because your mail server rejected the message
550-5.7.1[122.163.196.231] the ip you’re using to send mail is not authorized"

i have configure smtp server put 127.0.0.1 ip in relay and also put 127.0.0.1 ip in connection.

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Web;
using System.Web.Mail;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
 
namespace EMailSample
{
    public partial class SendMail : System.Web.UI.Page
    {
 
        protected void Page_Load(object sender, System.EventArgs e)
        {
            if (!IsPostBack)
            {
            }
            lblMessage.Text = "";
        }
 
        #region Web Form Designer generated code
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: This call is required by the ASP.NET Web Form Designer.
            //
            InitializeComponent();
            base.OnInit(e);
        }
 
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
 
        }
        #endregion
 
        protected void btnsend_Click(object sender, EventArgs e)
        {
            try
            {
                /* Create a new blank MailMessage */
                MailMessage mailMessage = new MailMessage();
 
                mailMessage.From = txtSender.Text;
                mailMessage.To = txtReceiver.Text;
                mailMessage.Cc = txtCc.Text;
                mailMessage.Bcc = txtBcc.Text;
                mailMessage.Subject = txtSubject.Text;
                mailMessage.Body = txtBody.Text;
 
                /* Set the properties of the MailMessage to the
                   values on the form  */
                if (rblMailFormat.SelectedItem.Text == "Text")
                    mailMessage.BodyFormat = MailFormat.Text;
                else
                    mailMessage.BodyFormat = MailFormat.Html;
 
                /* We use the following variables to keep track of
                   attachments and after we can delete them */
                string attach1 = null;
                string attach2 = null;
                string attach3 = null;
 
                /*strFileName has a attachment file name for 
                  attachment process. */
                string strFileName = null;
 
                /* Bigining of Attachment1 process   & 
                   Check the first open file dialog for a attachment */
                if (inpAttachment1.PostedFile != null)
                {
                    /* Get a reference to PostedFile object */
                    HttpPostedFile attFile = inpAttachment1.PostedFile;
                    /* Get size of the file */
                    int attachFileLength = attFile.ContentLength;
                    /* Make sure the size of the file is > 0  */
                    if (attachFileLength > 0)
                    {
                        /* Get the file name */
                        strFileName = Path.GetFileName(inpAttachment1.PostedFile.FileName);
                        /* Save the file on the server */
 
                        string path = Server.MapPath(strFileName);
                        inpAttachment1.PostedFile.SaveAs(path);
                        /* Create the email attachment with the uploaded file */
                        MailAttachment attach = new MailAttachment(Server.MapPath(strFileName));
                        /* Attach the newly created email attachment */
                        mailMessage.Attachments.Add(attach);
                        /* Store the attach filename so we can delete it later */
                        attach1 = strFileName;
                    }
                }
                /* Attachment-2 Repeat previous step */
                if (inpAttachment2.PostedFile != null)
                {
                    HttpPostedFile attFile = inpAttachment2.PostedFile;
                    int attachFileLength = attFile.ContentLength;
                    if (attachFileLength > 0)
                    {
                        strFileName = Path.GetFileName(inpAttachment2.PostedFile.FileName);
                        inpAttachment2.PostedFile.SaveAs(Server.MapPath(strFileName));
                        MailAttachment attach = new MailAttachment(Server.MapPath(strFileName));
                        mailMessage.Attachments.Add(attach);
                        attach2 = strFileName;
                    }
                }
                /* Attachment-3 Repeat previous steps  */
                if (inpAttachment3.PostedFile != null)
                {
                    HttpPostedFile attFile = inpAttachment3.PostedFile;
                    int attachFileLength = attFile.ContentLength;
                    if (attachFileLength > 0)
                    {
                        strFileName = Path.GetFileName(inpAttachment3.PostedFile.FileName);
                        inpAttachment3.PostedFile.SaveAs(Server.MapPath(strFileName));
                        MailAttachment attach = new MailAttachment(Server.MapPath(strFileName));
                        mailMessage.Attachments.Add(attach);
                        attach3 = strFileName;
                    }
                }
 
                /* Set the SMTP server and send the email with attachment */
 
                // SmtpMail.SmtpServer = "127.0.0.1";
                SmtpMail.SmtpServer.Insert(0, "127.0.0.1");
                //SmtpMail.SmtpServer.Insert(0,"192.168.1.7");
                SmtpMail.Send(mailMessage);
 
                /* Delete the attachements if any */
                if (attach1 != null)
                    File.Delete(Server.MapPath(attach1));
                if (attach2 != null)
                    File.Delete(Server.MapPath(attach2));
                if (attach3 != null)
                    File.Delete(Server.MapPath(attach3));
 
                /* clear the controls */
                txtSender.Text = "";
                txtReceiver.Text = "";
                txtCc.Text = "";
                txtBcc.Text = "";
                txtSubject.Text = "";
                txtBody.Text = "";
 
                /* Dispaly a confirmation message to the user. */
                lblMessage.Visible = true;
                lblMessage.ForeColor = Color.Black;
                lblMessage.Text = "Message Sent.";
            }
            catch (Exception ex)
            {
                /* Print a message informing the 
                user about the exception that was risen */
                lblMessage.Visible = true;
                lblMessage.ForeColor = Color.Red;
                lblMessage.Text = ex.ToString();
            }
        }
    }
}
 

please have a look,please help me

[Plater]

raj200809, I deleted your duplicate post.
Please don't double post your questions it's against the posting guidelines
MODERATOR



Now, I don't see anywhere were you supplied your credentials for your SMTP server, some servers will reject you if you don't supply valid(or any) credentials.
Also, are you sure you have a mail server running on localhost or that other LAN IP?

[raj200809]

raj200809, I deleted your duplicate post.
Please don't double post your questions it's against the posting guidelines
MODERATOR



Now, I don't see anywhere were you supplied your credentials for your SMTP server, some servers will reject you if you don't supply valid(or any) credentials.
Also, are you sure you have a mail server running on localhost or that other LAN IP?

Your are right but its also not working in localhost due to symentic antivirus.
but when i change mail setting of symentic antivirus. its give me message .
mail send. but i m not recive mail in to address.

if any one have mail method code to send mail please give me the method. i want call the function on button click event and send a confirmation mail to client.

please help me

[Plater]

Add your credentials for the SMTP server and see what happens.