(Delphi DLL) Retrieve UIDL's from POP3 Server

Retrieve a list of UIDLs from a POP3 server. A UIDL is an identifier consisting of 1 to 70 characters in the range 0x21 to 0x7E, which uniquely identifies a messages within a mailbox and persists across sessions.

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, StringArray;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: HCkMailMan;
success: Boolean;
sa: HCkStringArray;
i: Integer;
n: Integer;

begin
//  The mailman object is used for receiving (POP3)
//  and sending (SMTP) email.
mailman := CkMailMan_Create();

//  Any string argument automatically begins the 30-day trial.
success := CkMailMan_UnlockComponent(mailman,'30-day trial');
if (success <> True) then
  begin
    Memo1.Lines.Add('Component unlock failed');
    Exit;
  end;

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

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

sa := CkMailMan_GetUidls(mailman);

n := CkStringArray_getCount(sa);

for i := 0 to n - 1 do
  begin
    Memo1.Lines.Add(CkStringArray__getString(sa,i));
  end;

CkStringArray_Dispose(sa);

CkMailMan_Dispose(mailman);

end;