(Delphi DLL) Delete All Email in a POP3 Mailbox

Delete all email in a POP3 mailbox.

Note: This example requires Chilkat v11.1.0 or greater.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, MailMan, StringTable;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
mailman: HCkMailMan;
stUidls: HCkStringTable;

begin
success := False;

// 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 := CkMailMan_Create();

// Set the POP3 server's hostname
CkMailMan_putMailHost(mailman,'pop.example.com');

// Set the POP3 login/password.
CkMailMan_putPopUsername(mailman,'bob@example.com');
CkMailMan_putPopPassword(mailman,'****');

// 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.
CkMailMan_putImmediateDelete(mailman,True);

// First, get all the UIDLs.
stUidls := CkStringTable_Create();
success := CkMailMan_FetchUidls(mailman,stUidls);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

// Next, delete them all.
success := CkMailMan_DeleteUidlSet(mailman,stUidls);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

// We're done with the POP3 session, so it doesn't hurt to call this...
success := CkMailMan_Pop3EndSession(mailman);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

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

CkMailMan_Dispose(mailman);
CkStringTable_Dispose(stUidls);

end;