(Delphi DLL) SMTP NTLM Authentication

See more SMTP Examples

Demonstrates how to specify NTLM authentication for sending email via SMTP.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: HCkMailMan;
useCurrentWindowsUser: Boolean;
email: HCkEmail;
success: Boolean;

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

mailman := CkMailMan_Create();

// Specify your particular mail server's SMTP settings.
CkMailMan_putSmtpHost(mailman,'smtp.my_mail_server.com');
CkMailMan_putSmtpPort(mailman,587);
CkMailMan_putStartTLS(mailman,True);

// This assumes you know your SMTP server supports NTLM authentication.
// To explicitly request NTLM authentication, set the SmtpAuthMethod property = "ntlm".
CkMailMan_putSmtpAuthMethod(mailman,'ntlm');

// Note: Normally you should avoid setting the SmtpAuthMethod.
// SMTP servers tell the connecting client the authentication methods it will accept when the initial connection is made.
// Chilkat will automatically use this information to select and use the most secure auth method supported by the server.

useCurrentWindowsUser := True;

if (useCurrentWindowsUser = True) then
  begin
    // If you are running on Windows, and you wish for the NTLM credentials of the current logged-on Windows user to be used,
    // set the username and password to the string "default"
    CkMailMan_putSmtpUsername(mailman,'default');
    CkMailMan_putSmtpPassword(mailman,'default');
  end
else
  begin
    // Explicitly specify the SMTP username/password
    // The SMTP username is your email account username, which is often your email address.
    CkMailMan_putSmtpUsername(mailman,'your_smtp_username_or_email_address');
    CkMailMan_putSmtpPassword(mailman,'your_password');
  end;

email := CkEmail_Create();

CkEmail_putSubject(email,'This is a test');
CkEmail_putBody(email,'This is a test');
// Don't forget to change this to use your email addresses..
CkEmail_putFrom(email,'Chilkat Support <support@chilkatsoft.com>');
success := CkEmail_AddTo(email,'Chilkat Admin','admin@chilkatsoft.com');
// To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

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('Mail Sent!');

CkMailMan_Dispose(mailman);
CkEmail_Dispose(email);

end;