(Delphi ActiveX) SMTP Connect and Authenticate

Demonstrates how to connect and then authenticate with an SMTP server.

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

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
mailman: TChilkatMailMan;
success: Integer;

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

mailman := TChilkatMailMan.Create(Self);

mailman.SmtpHost := 'smtp.mail.us-west-2.awsapps.com';
mailman.SmtpSsl := 1;
mailman.SmtpPort := 465;

success := mailman.SmtpConnect();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

mailman.SmtpUsername := 'john@example.com';
mailman.SmtpPassword := 'the_password';

success := mailman.SmtpAuthenticate();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Authenticated!');

Memo1.Lines.Add(mailman.SmtpSessionLog);

// Sample session log:

// 220 smtp.us-west-2.mail.awsapps.com ESMTP Amazon WorkMail SMTP Service
// EHLO SLICE<CRLF>
// 250-smtp.us-west-2.mail.awsapps.com
// 250-8BITMIME
// 250-AUTH PLAIN LOGIN
// 250 Ok
// AUTH LOGIN<CRLF>
// 334 VXNlcm5hbWU6
// am9obkBleGFtcGxlLmNvbQ==<CRLF>
// 334 UGFzc3dvcmQ6
// {PasswordOrCredentials}
// 235 Authentication successful.
end;