We have facing a problem when we upload a file using smtp in asp.net

[Mukesh Tiwari]

When we run the application on localhost the attachment is upload succesfully and the mail is send.

But when we upload the site on webserver, and run the application the attachment was not uploaded because the attach file is not finding on web server.

Our code is

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net.Mail;
using System.IO;
 
 
public partial class _Default : System.Web.UI.Page
{
    String filename;
 
    protected void Page_Load(object sender, EventArgs e)
    {
 
    }
 
    protected void zSubmitBt_Click(object sender, EventArgs e)
    {
        try
        {
            MailMessage mail = new MailMessage();
 
            mail.To.Add ("tomailaddress.com");
            mail.From = new MailAddress("frommailaddress.com");
 
            mail.Subject = "Resume";
 
            string ml;
            if (zMaleRBt.Checked)
                ml = zMaleRBt.Text;
            else
                ml = zFemaleRBt.Text;
            //--------------------
 
 
 
 
            string matter = "<u><strong> Personal Detail :: </strong></u><br/> " +
                            "<br/> User Name______________ : " + zTbFName.Text + " " + zTbLName.Text +
                            "<br/> Mobile Number___________ : " + zTbMobNo.Text +
                            "<br/> Email___________________ : " + zEmailTb.Text +
                            "<br/> DOB (dd/mm/yy)__________: " + zAgeDayDDL.Text + "/" + zAgeMonthDDL.Text + "/" + zAgeYearDDL.Text +
 
                            "<br/> Gender__________________ : " + ml +
                //  "<br/> Gender__________________ : "+ zMaleRBt.Text+  "/" + zFemaleRBt.Text +
                            "<br/> Contact Address__________ : " + zAddressTb.Text +
                            "<br/> Native City Name__________ : " + zCityNameTb.Text +
 
                            "<br/><hr><br/><u><strong>Professional Detail ::</strong></u><br/>" +
                            "<br/> Total Experience(yy/mm)__ : " + zTotalEYDDL.Text + "/" + zTotalEMDDL.Text +
                            "<br/> Job Category____________ : " + zJobCatListDDL.Text +
                            "<br/> Key Skill_______________ : " + zKeySkillTb.Text +
                            "<br/> Current Employer________ : " + zCurrentCNameTb.Text +
                            "<br/> Current Salary (p.a.)______ : " + zCSalaryTb.Text +
                            "<br/> Expected Salary (p.a.)____ : " + zESalaryTb.Text +
 
                            "<br/><hr><br/><u><strong>Educationl Qualification ::</strong></u><br/>" +
                            "<br/> Highest Qualification___ : " + zHQualificationDDL.Text +
                            "<br/> Specialization_________ : " + zSpecializationDDL.Text +
                            "<br/> University/College______ : " + zCollegeDDL.Text +
                            "<br/> Other College_________ : " + zCollegeNotATb.Text +
                            "<br/> User Resume_________ : ";
 
            mail.Body = matter;
            mail.IsBodyHtml = true;
            // ----------------
 
            string strFileName = Path.GetFileName(zUpload.PostedFile.FileName);
            zUpload.PostedFile.SaveAs(Server.MapPath("~\\") + strFileName);
            System.Net.Mail.Attachment data1 = new System.Net.Mail.Attachment(Server.MapPath(strFileName));
            mail.Attachments.Add(data1);
 
 
 
            mail.Priority = MailPriority.High;
 
 
    SmtpClient smtp = new SmtpClient();
            //smtp.Port = 587;
            smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
           smtp.Credentials = new System.Net.NetworkCredential("frommailaddress.com", "password");
            //Or your Smtp Email ID and Password
            smtp.EnableSsl = true;
            smtp.Send(mail);
            zSubmitResp.Visible = true;
            zSubmitResp.Text = "Record Successfully Submitted";
            //zSubmitResp.Text = strFileName;
            //--------
 
            zTbFName.Text = "";
            zTbLName.Text = "";
            zTbMobNo.Text = "";
            zESalaryTb.Text = "";
            zEmailTb.Text = "";
            zCurrentCNameTb.Text = "";
            zCSalaryTb.Text = "";
            zCityNameTb.Text = "";
            zAddressTb.Text = "";
            zCollegeNotATb.Text = "";
 
}
 
        catch (Exception ec)
        {
            zSubmitResp.Visible = true;
            zSubmitResp.Text = ec.ToString();
            }
 
 
    }
}

[Frinavale]

You need permissions to the folder (on the server) where your file is being uploaded to.

When debugging your application using Visual Studio, your application is run under your user account. Your user account likely has permissions to write the file into the folder.

However, when your application is run on a webserver the user account that it is run under has very limited permissions and it is likely that this account is not permitted to write the file to the folder.

-Frinny