(Delphi ActiveX) Process Bounced Email in IMAP

Reads an IMAP mailbox and determines which emails are bounces.

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
imap: TChilkatImap;
bounce: TChilkatBounce;
success: Integer;
messageSet: IMessageSet;
fetchUids: Integer;
bundle: IChilkatEmailBundle;
i: Integer;
numEmails: Integer;
email: IChilkatEmail;

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

imap := TChilkatImap.Create(Self);
bounce := TChilkatBounce.Create(Self);

// Connect to an IMAP server.
// Use TLS
imap.Ssl := 1;
imap.Port := 993;
success := imap.Connect('imap.someMailServer.com');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Login
success := imap.Login('admin@chilkatsoft.com','myPassword');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Select an IMAP mailbox
success := imap.SelectMailbox('INBOX.bounceSamples');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// We can choose to fetch UIDs or sequence numbers.
fetchUids := 1;
// Get the message IDs of all the emails in the mailbox
messageSet := imap.Search('ALL',fetchUids);
if (imap.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Fetch the emails into a bundle object:

bundle := imap.FetchBundle(messageSet);
if (imap.LastMethodSuccess = 0) then
  begin

    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Loop over the bundle and display the FROM and SUBJECT of each.
i := 0;
numEmails := bundle.MessageCount;
while i < numEmails do
  begin
    email := bundle.GetEmail(i);

    success := bounce.ExamineEmail(email);

    Memo1.Lines.Add('Subject: ' + email.Subject);
    Memo1.Lines.Add('Bounce Type = ' + IntToStr(bounce.BounceType) + ', email address = ' + bounce.BounceAddress);

    i := i + 1;
  end;

// Disconnect from the IMAP server.
success := imap.Disconnect();
end;