Delphi ActiveX Requires Chilkat v11.0.0+

Delete Email Individually (One at a time) from an IMAP Mailbox

Downloads email from an IMAP mailbox and deletes emails individually (one by one). Delphi ActiveX

var
success: Integer;
imap: TChilkatImap;
fetchUids: Integer;
messageSet: TMessageSet;
bundle: TChilkatEmailBundle;
headersOnly: Integer;
email: TChilkatEmail;
i: Integer;
numEmails: Integer;

begin
success := 0;

//  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;
success := imap.Connect('imap.example.com');
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

//  Login
success := imap.Login('myLogin','myPassword');
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

//  Select an IMAP mailbox
success := imap.SelectMailbox('Inbox');
if (success = 0) 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 := TMessageSet.Create(Self);
success := imap.QueryMbx('ALL',fetchUids,messageSet.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

//  Fetch the emails into a bundle object:
bundle := TChilkatEmailBundle.Create(Self);
headersOnly := 0;
success := imap.FetchMsgSet(headersOnly,messageSet.ControlInterface,bundle.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

//  To mark a complete set of emails for deletion, call SetFlags:
success := imap.SetFlags(messageSet.ControlInterface,'Deleted',1);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

//  Messages can also be marked for deletion individually:
//  Loop over the bundle and mark each message for deletion.
email := TChilkatEmail.Create(Self);
i := 0;
numEmails := bundle.MessageCount;
while i < numEmails do
  begin
    bundle.EmailAt(i,email.ControlInterface);

    Memo1.Lines.Add(email.From);
    Memo1.Lines.Add(email.Subject);

    //  To delete this email, set the "Deleted" flag to 1.
    //  The email is not actually deleted until Expunge or
    //  ExpungeAndClose is called.
    success := imap.SetMailFlag(email.ControlInterface,'Deleted',1);
    if (success = 0) then
      begin
        Memo1.Lines.Add(imap.LastErrorText);
        Exit;
      end;

    Memo1.Lines.Add('--');

    i := i + 1;
  end;

success := imap.ExpungeAndClose();
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

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