(Delphi ActiveX) IMAP Delete Old Email (before a specified date)

Demonstrates how to delete email older than a particular date.

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;
success: Integer;
messageSet: IMessageSet;
fetchUids: Integer;
i: Integer;
count: 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);

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

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

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

// Get message ID's for emails older than 1/1/2018

fetchUids := 1;
messageSet := imap.Search('SENTBEFORE 01-Jan-2018',fetchUids);
if (imap.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// If desired, we can examine the Subject of each email to be deleted..
i := 0;
count := messageSet.Count;
while i < count do
  begin
    email := imap.FetchSingleHeader(messageSet.GetId(i),1);
    if (imap.LastMethodSuccess = 1) then
      begin
        Memo1.Lines.Add(email.Subject);

      end;
    i := i + 1;
  end;

// Set the Deleted flag for each message:
success := imap.SetFlags(messageSet,'Deleted',1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);

    Exit;
  end;

// Expunge and close the mailbox.
success := imap.ExpungeAndClose();
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);

    Exit;
  end;

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