Set the Signing Certificate for an Email

See more Email Object Examples

Demonstrates the Chilkat Email.SetSigningCert method, which sets the certificate (with access to its private key) used to create a digital signature when sending signed email. This example loads the signing certificate from a PFX, sets it, and enables signed sending.

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.Email,
  Chilkat.Cert;

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

procedure RunDemo;
var
  success: Boolean;
  email: TEmail;
  cert: TCert;

begin
  success := False;

  //  Demonstrates the SetSigningCert method, which sets the certificate (with access to its
  //  private key) used for creating a digital signature when sending signed email.

  email := TEmail.Create;
  email.Subject := 'Signed email';
  email.Body := 'This message will be sent with a digital signature.';
  email.From := 'alice@example.com';
  email.AddTo('Bob','bob@example.com');

  //  Load a signing certificate together with its private key from a PFX file.
  cert := TCert.Create;
  success := cert.LoadPfxFile('qa_data/certs/signer.pfx','pfx_password');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  Set the certificate used to create the signature.
  success := email.SetSigningCert(cert);
  if (success = False) then
    begin
      WriteLn(email.LastErrorText);
      Exit;
    end;

  //  Request that the email be sent with a digital signature.
  email.SendSigned := True;

  WriteLn('Signing certificate set.');

  //  Note: The path "qa_data/certs/signer.pfx" is a relative local filesystem path,
  //  relative to the current working directory of the running application.


  email.Free;
  cert.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.