Pascal (Lazarus/Delphi)

Send a Simple Email

Create a simple email and sends it. The SendEmail method establishes a connection (session) with the SMTP server if necessary, and leaves the connection open so that additional sends may proceed using the same session. The SMTP connection (session) may be explicitly closed by calling CloseSmtpSession.

Important: Some SMTP servers do not actually send the email until the connection is closed. In these cases, it is necessary to call CloseSmtpConnection for the mail to be sent. Most SMTP servers send the email immediately, and it is not required to close the connection.

More information about minimizing SMTP connections.

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.MailMan,
  Chilkat.Email;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  mailman: TMailMan;
  email: TEmail;

begin
  success := False;

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

  //  The mailman object is used for sending and receiving email.
  mailman := TMailMan.Create;

  //  Set the SMTP server.
  mailman.SmtpHost := 'smtp.my_mail_server.com';

  //  Set the SMTP login/password (if required)
  mailman.SmtpUsername := 'myUsername';
  mailman.SmtpPassword := 'myPassword';

  //  The typical SMTP ports are 465 for implicit SSL/TLS or 587 for explicit SSL/TLS
  mailman.SmtpPort := 465;
  //  For implicit TLS, set SmtpSsl = True
  mailman.SmtpSsl := True;
  //  For explicit TLS, set StartTLS = True
  mailman.StartTLS := True;

  //  Create a new email object
  email := TEmail.Create;

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

  //  Call SendEmail to connect to the SMTP server and send.
  //  The connection (i.e. session) to the SMTP server remains
  //  open so that subsequent SendEmail calls may use the
  //  same connection.  
  success := mailman.SendEmail(email);
  if (success = False) then
    begin
      WriteLn(mailman.LastErrorText);
      Exit;
    end;

  //  Some SMTP servers do not actually send the email until 
  //  the connection is closed.  In these cases, it is necessary to
  //  call CloseSmtpConnection for the mail to be  sent.  
  //  Most SMTP servers send the email immediately, and it is 
  //  not required to close the connection.  We'll close it here
  //  for the example:
  success := mailman.CloseSmtpConnection();
  if (success <> True) then
    begin
      WriteLn('Connection to SMTP server not closed cleanly.');
    end;

  WriteLn('Mail Sent!');


  mailman.Free;
  email.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.