Delphi ActiveX

Create Non-Multipart Email with XML Body that is an Attachment

See more SMTP Examples

Creates an email where the only body is a binary WAV file. The technique used in the example could be applied to other binary files, such as PDF, MS-WORD docs, Excel docs, etc. Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
xmlBody: WideString;
email: TChilkatEmail;
mailman: TChilkatMailMan;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The goal of this example is to create an email that has this MIME format,
// where the body of the email is XML using base64 encoding, 
// and the Content-Type and Content-Disposition are set as indicated.

// Date: Wed, 23 Aug 2023 09:01:52 +0200 (CEST)
// From: joe@example1.com
// Subject: [v=EMCS.NL][a=NL****][k=****][s=0]
// To: mary@example2.com
// MIME-Version: 1.0
// Content-Type: application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
// Content-Transfer-Encoding: Base64
// Content-Disposition: attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
// Message-Id: <......>
// 
// <multi-line base64 encoded XML here>

success := 1;

xmlBody := '<ie:IE801 xmlns:ie="urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:IE801:V3.01" xmlns:tms="urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:TMS:V3.01">....</ie:IE801>';

email := TChilkatEmail.Create(Self);

// Add subject, TO, FROM, etc.
email.Subject := '[v=EMCS.NL][a=NL****][k=****][s=0]';
email.From := 'joe@example1.com';
success := email.AddTo('Mary','mary@example2.com');

email.Body := xmlBody;

email.AddHeaderField('Content-Transfer-Encoding','Base64');
email.AddHeaderField('Content-Type','application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt');
email.AddHeaderField('Content-Disposition','attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt');

// Your email is ready to send
mailman := TChilkatMailMan.Create(Self);

mailman.SmtpHost := 'smtp.my_mail_server.com';
mailman.SmtpUsername := 'myUsername';
mailman.SmtpPassword := 'myPassword';
mailman.SmtpPort := 465;
mailman.SmtpSsl := 1;
mailman.StartTLS := 1;

success := mailman.SendEmail(email.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;
success := mailman.CloseSmtpConnection();
if (success <> 1) then
  begin
    Memo1.Lines.Add('Connection to SMTP server not closed cleanly.');
  end;

Memo1.Lines.Add('Mail Sent!');
end;