Mail issue using smtp

raja n

I am using smtp for sending mail. when i send mail for without attachment means mail sent successfully,but with attachment means not received in mail and no error came in server(file hosted) but local machine working good.

my code is

string mailFrom, mailPw;

mailFrom = ConfigurationManager.AppSettings["mailfrom"].ToString();

mailPw = ConfigurationManager.AppSettings["mailpw"].ToString();

MailMessage mm = new MailMessage();

mm.From = new MailAddress(mailFrom);

mm.To.Add(toaddress_txt.Text.Trim());

mm.Subject = subject_txt.Text;

mm.Body = emailcontent_txt.Text;

mm.IsBodyHtml = true;

if (attachment_FileUpload.HasFile)

{

string FileName = Path.GetFileName(attachment_FileUpload.PostedFile.FileName);

mm.Attachments.Add(new Attachment(attachment_FileUpload.PostedFile.InputStream, FileName));

}

SmtpClient smtp = new SmtpClient();

smtp.Host = "smtp.gmail.com";

smtp.Port = 587;

smtp.UseDefaultCredentials = true;

smtp.Credentials = new System.Net.NetworkCredential(mailFrom, mailPw);

smtp.DeliveryMethod = SmtpDeliveryMethod.Network;

smtp.EnableSsl = true;

smtp.Send(mm);

smtp.Dispose();

Thnks in advance

5 Replies

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Bryian Tan9y ago
Accepted answer
Did you check the spam/junk folder also?
Bryian Tan9y ago
What type of file you trying to attach? Try something simple like a text file.
Rajeesh Menoth9y ago
Hi,

Please check my article reference :

http://www.c-sharpcorner.com/UploadFile/2a6dc5/how-to-send-a-email-using-Asp-Net-C-Sharp/

http://www.c-sharpcorner.com/UploadFile/2a6dc5/send-multiple-email-with-attachment-using-Asp-Net-with-C-Sharp/
raja n9y ago
Hi Bryian Tan

Thnks for your reply, am checking spam folder also but no mail received. without attachment means mail received in inbox.
Saber Shaikh9y ago
try

{

MailMessage Msg = new MailMessage();

// Sender e-mail address.

Msg.From = txtFrom.Text;

// Recipient e-mail address.

Msg.To = txtTo.Text;

// Subject of e-mail

Msg.Subject = txtSubject.Text;

if (fileUpload1.HasFile)

{

// File Upload path

String FileName = fileUpload1.PostedFile.FileName;

//Getting Attachment file

MailAttachment mailAttachment = new MailAttachment(FileName, MailEncoding.Base64);

//Attaching uploaded file

Msg.Attachments.Add(mailAttachment);

}

Msg.Body = txtBody.Text;

// your remote SMTP server IP.

SmtpMail.SmtpServer = "10.120.0.21";

SmtpMail.Send(Msg);

Msg = null;

Page.RegisterStartupScript("UserMsg", "");

}

catch (Exception ex)

{

Console.WriteLine("{0} Exception caught.", ex);

}

Refer Link- https://aspnettutorialscode.blogspot.in/2013/11/how-to-send-mail-with-attachement-in.html