(Delphi ActiveX) Delete Individual Emails from POP3 Mailbox

Demonstrates how to delete individual emails from a POP3 mailbox.

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;
bundle: IChilkatEmailBundle;
i: Integer;
email: IChilkatEmail;
success: Integer;

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

// The mailman object is used for receiving (POP3) 
// and sending (SMTP) email.
mailman := TChilkatMailMan.Create(Self);

// Set the POP3 server's hostname
mailman.MailHost := 'pop.someMailServer.com';

// Set the POP3 login/password.
mailman.PopUsername := 'myLogin';
mailman.PopPassword := 'myPassword';

// Set the ImmediateDelete property = 0
// When the DeleteEmail method is called, the POP3 session
// will remain open and the emails will be deleted all at once
// when the session closes.
mailman.ImmediateDelete := 0;

// Download email headers.  
bundle := mailman.GetAllHeaders(1);
if (mailman.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

i := 0;

while i < bundle.MessageCount do
  begin
    email := bundle.GetEmail(i);

    Memo1.Lines.Add('From: ' + email.From);
    Memo1.Lines.Add('Subject: ' + email.Subject);

    // If you decide the email is to be deleted, call DeleteEmail.
    // This marks the email for deletion on the POP3 server.
    success := mailman.DeleteEmail(email);
    if (success <> 1) then
      begin
        Memo1.Lines.Add(mailman.LastErrorText);
        Exit;
      end;

    i := i + 1;
  end;

// Make sure the POP3 session is ended to finalize the deletes.
success := mailman.Pop3EndSession();
if (success <> 1) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
  end;

Memo1.Lines.Add('Success!');
end;