How to send email with attachment from C#

The following C# source code shows how to send an email with an attachment from a Gmail address . The Gmail SMTP server name is smtp.gmail.com and the port using send mail is 587 . Here using NetworkCredential for password based authentication.

public static string sendMail(string To, string Subject, string Body, string Attachments, string Filename)
        {
            Attachments = "The following C# source code shows how to send an email with an attachment from a Gmail or other address . The Gmail SMTP or other server name is smtp.gmail.com, smtp.office365.com or other smpt and the port using send mail is 587 . Here using Network Credential for password based authentication.";
            string result = "Message Sent Successfully..!!";
            try
            {               
                string UserID = "mail@mail.com";
                string Password = "password";
                //Initializes a new SmtpClient.
                SmtpClient client = new SmtpClient("smtp.office365.com", 587);
                client.EnableSsl = true;
                client.Credentials = new System.Net.NetworkCredential(UserID, Password);
                MailMessage msg = new MailMessage(UserID, To);
                msg.IsBodyHtml = true;
                msg.Subject = Subject;
                msg.Body = Body;
                if (!string.IsNullOrEmpty(Attachments))
                {
                    var memStream = new MemoryStream(GetPDF(Attachments));
                    memStream.Position = 0;
                    var contentType = new System.Net.Mime.ContentType(System.Net.Mime.MediaTypeNames.Application.Pdf);
                    var reportAttachment = new Attachment(memStream, contentType);
                    reportAttachment.ContentDisposition.FileName = Filename;
                    msg.Attachments.Add(reportAttachment);
                }
                ////
                client.Send(msg);
                //ms.Close();
            }
            catch (Exception ex)
            {
                result = "Error";
            }
            return result;
        }
        public static byte[] GetPDF(string pHTML)
        {
            byte[] bPDF = null;

            MemoryStream ms = new MemoryStream();
            TextReader txtReader = new StringReader(pHTML);

            // 1: create object of a itextsharp document class  
            Document doc = new Document(PageSize.A4, 25, 25, 25, 25);

            // 2: we create a itextsharp pdfwriter that listens to the document and directs a XML-stream to a file  
            PdfWriter oPdfWriter = PdfWriter.GetInstance(doc, ms);

            // 3: we create a worker parse the document  
            HTMLWorker htmlWorker = new HTMLWorker(doc);

            // 4: we open document and start the worker on the document  
            doc.Open();
            htmlWorker.StartDocument();


            // 5: parse the html into the document  
            htmlWorker.Parse(txtReader);

            // 6: close the document and the worker  
            htmlWorker.EndDocument();
            htmlWorker.Close();
            doc.Close();

            bPDF = ms.ToArray();

            return bPDF;
        }

2020-01-13

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