Delphi DLL
Send HTML Email with Attachments

Demonstrates how to send an HTML email with file attachments.
Chilkat Delphi DLL Downloads

Delphi DLL
uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, MailMan, StringBuilder, Email;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
mailman: HCkMailMan;
email: HCkEmail;
contentIdStarfish: PWideChar;
sbHtml: HCkStringBuilder;
numReplacements: Integer;
content: PWideChar;

begin
success := False;

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

mailman := CkMailMan_Create();

CkMailMan_putSmtpHost(mailman,'smtp.my-starttls-mail-server.com');

CkMailMan_putSmtpUsername(mailman,'MY-SMTP-USERNAME');
CkMailMan_putSmtpPassword(mailman,'MY-SMTP-PASSWORD');

CkMailMan_putStartTLS(mailman,True);
CkMailMan_putSmtpPort(mailman,587);

// Create a new email object
email := CkEmail_Create();
CkEmail_putSubject(email,'Test SMTP API to Send HTML Email with Attachments');
CkEmail_putFrom(email,'Joe Programmer <joe@my-starttls-mail-server.com>');
CkEmail_AddTo(email,'Chilkat Support','support@chilkatsoft.com');

// Add a plain-text alternative body, which will likely never be seen.
// (It is shown if the receiving email client is incapable of displaying HTML email.)
CkEmail_AddPlainTextAlternativeBody(email,'This is a plain-text alternative body...');

// Our HTML will include an image, so add the related image here.
contentIdStarfish := CkEmail__addRelatedFile(email,'qa_data/jpg/starfish.jpg');
if (CkEmail_getLastMethodSuccess(email) <> True) then
  begin
    Memo1.Lines.Add(CkEmail__lastErrorText(email));
    Exit;
  end;

// The src attribute for the image tag is set to the contentIdStarfish:
sbHtml := CkStringBuilder_Create();
CkStringBuilder_Append(sbHtml,'<html><body><p>This is an HTML email with an embedded image.</p>');
CkStringBuilder_Append(sbHtml,'<p><img src="cid:CONTENT_ID_STARFISH" /></p></body></html>');
numReplacements := CkStringBuilder_Replace(sbHtml,'CONTENT_ID_STARFISH',contentIdStarfish);

CkEmail_AddHtmlAlternativeBody(email,CkStringBuilder__getAsString(sbHtml));

// Finally, add some attachments to the email.
// Add a file attachment.
success := CkEmail_AddFileAttachment2(email,'qa_data/pdf/fishing.pdf','application/pdf');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkEmail__lastErrorText(email));
    Exit;
  end;

// Add an attachment where the content is contained in a string.
content := 'This is the content of the 2nd attached file.';
CkEmail_AddStringAttachment(email,'someText.txt',content);

// Send the HTML email.
success := CkMailMan_SendEmail(mailman,email);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

success := CkMailMan_CloseSmtpConnection(mailman);
if (success <> True) then
  begin
    Memo1.Lines.Add('Connection to SMTP server not closed cleanly.');
  end;

Memo1.Lines.Add('HTML email with attachments sent!');

CkMailMan_Dispose(mailman);
CkEmail_Dispose(email);
CkStringBuilder_Dispose(sbHtml);

end;