Pascal (Lazarus/Delphi)

Send High Priority Email (SMTP, X-Priority header)

Demonstrates how to send high-priorty email (or lower priority email) by setting the X-Priority header field. 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 (obviously, use your SMTP server, not chilkatsoft.com)
  mailman.SmtpHost := 'smtp.chilkatsoft.com';

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

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

  email.Subject := 'This is a test';
  email.Body := 'This is a test';
  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.

  //  To send high-priority email, 
  //  add the X-Priority header field with the value "1" 
  //  to indicate highest-priority.
  //  A value of "3" is normal, which is the same as not setting
  //  the X-Priority header at all, and "5" is the lowest. 
  //  "2" and "4" are in-betweens.

  //  Microsoft Outlook might add the following headers when
  //  sending high-priority email.

  //  X-Priority: 1 (Highest) 
  //  X-MSMail-Priority: High 
  //  Importance: High 

  //  The X-Priority header alone is enough to make the email high-priority.

  email.AddHeaderField('X-Priority','1');

  //  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 <> True) then
    begin
      WriteLn(mailman.LastErrorText);
      Exit;
    end;

  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.