Read IMAP Mailbox

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Basic Delphi example program showing how to connect to an IMAP server, login, select a mailbox, and fetch the emails one by one.

procedure TForm1.Button1Click(Sender: TObject);
var
  connectSuccess: Integer;
  loginSuccess: Integer;
  selectSuccess: Integer;
  mset: IMessageSet;
  n: Integer;
  i: Integer;
  email: IChilkatEmail2;

begin
  loginSuccess := 0;
  selectSuccess := 0;

  // Import the Chilkat IMAP ActiveX and drop an instance
  // of ChilkatImap onto your Delphi program's form.
  ChilkatImap1.UnlockComponent('anything for 30-day trial');

  // -------------------------
  // Connect to an IMAP server.
  // -------------------------
  connectSuccess := ChilkatImap1.Connect('myImapServerHostname');
  if (connectSuccess = 0) then
    begin
      ShowMessage('Failed to connect!');
      ChilkatImap1.SaveLastError('connectErrorLog.txt');
    end;

  // -------------------------
  // IMAP Login
  // -------------------------
  if (connectSuccess = 1) then
    loginSuccess := ChilkatImap1.Login('myLogin', 'myPassword');

  if (loginSuccess = 0) then
    begin
      ShowMessage('Failed to login!');
      ChilkatImap1.SaveLastError('loginErrorLog.txt');
    end;

  // -------------------------
  // Select an IMAP Mailbox
  // -------------------------
  if (loginSuccess = 1) then
    selectSuccess := ChilkatImap1.SelectMailbox('INBOX');

  if (selectSuccess = 0) then
    begin
      ShowMessage('Failed to select mailbox!');
      ChilkatImap1.SaveLastError('selectErrorLog.txt');
    end;

  if (selectSuccess = 1) then
    begin
      // -------------------------
      // Fetch the complete set of UIDs for the mail in the selected mailbox.
      // -------------------------
      mset := ChilkatImap1.GetAllUids();
      if (mset = nil) then
        begin
          ShowMessage('Failed to fetch Uids');
          ChilkatImap1.SaveLastError('getUidsErrorLog.txt');
        end
      else
        begin
          // For each UID, fetch the email and display the FROM and Subject
          n := mset.Count;

          for i := 0 to n-1 do
            begin
              email := ChilkatImap1.FetchSingle(mset.GetID(i),1);
              if (email <> nil) then
                begin
                    Memo1.Lines.Add(email.From);
                    Memo1.Lines.Add(email.Subject);
                    Memo1.Lines.Add('----');
                end;
            end;
        end;

    end;

    ShowMessage('Finished!');
end;