(Delphi DLL) Copy an Email from One Mailbox to Another

Copies an email from one IMAP folder to another. After running this example, copies of the email will be present in both source and destination folders.

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, Imap, MessageSet;

...

procedure TForm1.Button1Click(Sender: TObject);
var
imap: HCkImap;
success: Boolean;
messageSet: HCkMessageSet;
fetchUids: Boolean;
i: Integer;
n: Integer;
msgId: Integer;
isUid: Boolean;

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

// This example copies an email from one mailbox to another.
imap := CkImap_Create();

// Turn on session logging:
CkImap_putKeepSessionLog(imap,True);

// Connect to an IMAP server.
// Use TLS
CkImap_putSsl(imap,True);
CkImap_putPort(imap,993);
success := CkImap_Connect(imap,'imap.someMailServer.com');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Login
success := CkImap_Login(imap,'***','***');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Select an IMAP mailbox
success := CkImap_SelectMailbox(imap,'Inbox.testing.a');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

fetchUids := True;

// Get the message IDs for all emails having "Re:" in the subject.
messageSet := CkImap_Search(imap,'SUBJECT Re:',fetchUids);
if (CkImap_getLastMethodSuccess(imap) <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Copy the messages from "Inbox.testing.a" to "Inbox.testing.b" in one call to CopyMultiple:
success := CkImap_CopyMultiple(imap,messageSet,'Inbox.testing.b');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Alternatively, loop over each message in the set and
// copy each separately:

n := CkMessageSet_getCount(messageSet);
if (n > 0) then
  begin
    for i := 0 to n - 1 do
      begin
        msgId := CkMessageSet_GetId(messageSet,i);
        isUid := CkMessageSet_getHasUids(messageSet);
        success := CkImap_Copy(imap,msgId,isUid,'Inbox.testing.c');
        if (success <> True) then
          begin
            Memo1.Lines.Add(CkImap__lastErrorText(imap));
            Exit;
          end;
      end;

  end;

// Display the session log.
Memo1.Lines.Add(CkImap__sessionLog(imap));

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

CkMessageSet_Dispose(messageSet);

CkImap_Dispose(imap);

end;