(Delphi ActiveX) 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 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;
sa: ICkStringArray;
uidl: WideString;
i: Integer;
numUidls: Integer;

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

mailman := TChilkatMailMan.Create(Self);

mailman.MailHost := 'pop.example.com';

mailman.PopUsername := 'myLogin';
mailman.PopPassword := 'myPassword';

mailman.MailPort := 995;
mailman.PopSsl := 1;

sa := mailman.GetUidls();
if (mailman.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

// Download each email by UIDL.

i := 0;
numUidls := sa.Count;
while i < numUidls do
  begin
    uidl := sa.GetString(i);
    Memo1.Lines.Add(uidl);
    i := i + 1;
  end;
end;