Delphi ActiveX

Delete All Email in a POP3 Mailbox

Delete all email in a POP3 mailbox. Delphi ActiveX

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
success: Integer;
mailman: TChilkatMailMan;
stUidls: TChilkatStringTable;

begin
success := 0;

// 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.example.com';

// Set the POP3 login/password.
mailman.PopUsername := 'bob@example.com';
mailman.PopPassword := '****';

// Make sure the ImmediateDelete property is set (this is the default)
// If ImmediateDelete is not set, messages marked for deletion
// by the Delete* methods will not be deleted until the POP3
// connection is closed by calling Pop3EndSession.
mailman.ImmediateDelete := 1;

// First, get all the UIDLs.
stUidls := TChilkatStringTable.Create(Self);
success := mailman.FetchUidls(stUidls.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

// Next, delete them all.
success := mailman.DeleteUidlSet(stUidls.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

// We're done with the POP3 session, so it doesn't hurt to call this...
success := mailman.Pop3EndSession();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

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