Read Gmail POP3 Mailbox

Reads the header for each email in a GMail POP3 mailbox and displays the FROM and SUBJECT header fields. In your GMail "Forwarding and POP" settings, be sure to select "When messages are accessed with POP keep Gmail's copy in the Inbox".

Download Chilkat Email ActiveX

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATMAILLib2_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: TChilkatMailMan2;
success: Integer;
bundle: CHILKATMAILLib2_TLB.IChilkatEmailBundle2;
i: Integer;
email: CHILKATMAILLib2_TLB.IChilkatEmail2;

begin
//  The mailman object is used for receiving (POP3)
//  and sending (SMTP) email.
mailman := TChilkatMailMan2.Create(Self);

//  Any string argument automatically begins the 30-day trial.
success := mailman.UnlockComponent('30-day trial');
if (success <> 1) then
  begin
    ShowMessage('Component unlock failed');
    Exit;
  end;

//  Set the GMail account POP3 properties.
mailman.MailHost := 'pop.gmail.com';
mailman.PopUsername := 'myLogin';
mailman.PopPassword := 'myPassword';
mailman.PopSsl := 1;
mailman.MailPort := 995;

//  Read mail headers and one line of the body.
//  To get the full emails, call CopyMail instead (no arguments)
bundle := mailman.GetAllHeaders(1);

if (bundle = nil ) then
  begin
    ShowMessage(mailman.LastErrorText);
    Exit;
  end;

for i := 0 to bundle.MessageCount - 1 do
  begin
    email := bundle.GetEmail(i) As CHILKATMAILLib2_TLB.IChilkatEmail2;

    //  Display the From email address and the subject.
    Memo1.Lines.Add(email.From);
    Memo1.Lines.Add(email.Subject + #13#10);

  end;


end;