(Delphi DLL) 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.

Note: This example requires Chilkat v11.0.0 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, Email;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
mailman: HCkMailMan;
numMessages: Integer;
i: Integer;
email: HCkEmail;

begin
success := False;

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

mailman := CkMailMan_Create();

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

// Set the POP3 login/password.
CkMailMan_putPopUsername(mailman,'myLogin');
CkMailMan_putPopPassword(mailman,'myPassword');

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

// 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 := CkEmail_Create();
while i <= numMessages do
  begin
    // Fetch by the message number (not by the UIDL)
    success := CkMailMan_FetchOne(mailman,False,0,i,email);
    if (success = False) then
      begin
        Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
        Exit;
      end;

    Memo1.Lines.Add(CkEmail__from(email) + ': ' + CkEmail__subject(email) + #10);

    i := i + 1;
  end;

CkMailMan_Dispose(mailman);
CkEmail_Dispose(email);

end;