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Send E-mail with attached file in asp.net


First of all add one namespace
  • using System.Net.Mail
then enter following code . make sure that following code has attached one text file with folder name you have to give you folder name and file name.
");
strbody.Append("
");
string result = SendEMailMessage("test@gmail.com", "test", "test1@gmail.com", strbody.ToString(), "Testing");
if (result.ToString() == "Mail sent successfully")
      ScriptManager.RegisterStartupScript(Page, Page.GetType(), "str", "alert('Mail Sent Successfully.');", true);
else
      ScriptManager.RegisterStartupScript(Page, Page.GetType(), "str", "alert('Mail Sending fail.');", true);

public static string SendEMailAttachment(string EMailFrom, string EMailName, string EMailTo, string EmailBody, string EmailSubject)
    {
        string SmtpServer = "smtp.gmail.com";
        string smtpusername = "yourgmailemailid@gmail.com";
        string smtppassword = "password";
        string flah = "";
        SmtpClient SmtpMail = new SmtpClient();
        MailMessage message = new MailMessage();
        System.Net.Mail.Attachment attach = new System.Net.Mail.Attachment(System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath + "OrderText\\Order.txt");
        message.Attachments.Add(attach);
        message.IsBodyHtml = true;
        try
        {
            SmtpMail.Host = SmtpServer;
            SmtpMail.UseDefaultCredentials = false;
            SmtpMail.Credentials = new System.Net.NetworkCredential(smtpusername, smtppassword);//Fetching the credentials
            MailAddress fromAddress = new MailAddress(EMailFrom, EMailName);// Set the sender address of the mail message
            message.From = fromAddress;
            message.Sender = fromAddress; // Set the recepient address of the mail message
            message.To.Add(EMailTo); // Set the subject of the mail message
            message.Subject = EmailSubject; // Set the format of the mail message body as HTML
            message.Body = EmailBody;
            message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
            SmtpMail.Send(message);
            if (message.Attachments.Count > 0)
            {
                attach.Dispose();
            }
            flah = "Mail sent successfully";
            return flah;
        }
        catch (Exception ex)
        {
            flah = "Mail could not be sent successfully " + ex.Message;
            return flah;
        }


How to call this mail function
   StringBuilder strbody = new StringBuilder();
strbody.Append("your content");
strbody.Append("your content");
string result = SendEMailMessage("test@gmail.com", "test", "test1@gmail.com", strbody.ToString(), "Testing");
if (result.ToString() == "Mail sent successfully")
      ScriptManager.RegisterStartupScript(Page, Page.GetType(), "str", "alert('Mail Sent Successfully.');", true);
else
      ScriptManager.RegisterStartupScript(Page, Page.GetType(), "str", "alert('Mail Sending fail.');", true);
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