Delphi ActiveX

Read All Email from POP3 Inbox by Message Numbers

Demonstrates how to read all of the email from a POP3 inbox by fetching each email by it's message number. 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;
numMessages: Integer;
i: Integer;
email: TChilkatEmail;

begin
success := 0;

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

mailman := TChilkatMailMan.Create(Self);

// Set the POP3 server's hostname
mailman.MailHost := 'pop.example.com';

// Set the POP3 login/password.
mailman.PopUsername := 'myLogin';
mailman.PopPassword := 'myPassword';

// Get the number of messages in the mailbox.
numMessages := mailman.GetMailboxCount();

// Message numbers are specific to a POP3 session. 
// If a maildrop (i.e. inbox)  contains 10 messages, 
// the message numbers will be 1, 2, 3, ... 10. 
// If message number 1 is deleted and a new POP3 session 
// is established, there will be 9 messages numbered 1, 2, 3, ... 9. 

i := 1;

email := TChilkatEmail.Create(Self);
while i <= numMessages do
  begin
    // Fetch by the message number (not by the UIDL)
    success := mailman.FetchOne(0,0,i,email.ControlInterface);
    if (success = 0) then
      begin
        Memo1.Lines.Add(mailman.LastErrorText);
        Exit;
      end;

    Memo1.Lines.Add(email.From + ': ' + email.Subject + #10);

    i := i + 1;
  end;
end;