(Delphi ActiveX) Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments.

Note: This example requires Chilkat v11.0.0 or greater.

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
success: Integer;
imap: TChilkatImap;
fetchUids: Integer;
messageSet: TMessageSet;
bundle: TChilkatEmailBundle;
headersOnly: Integer;
fullEmail: TChilkatEmail;
emailHeader: TChilkatEmail;
i: Integer;
numAttach: Integer;
uidStr: WideString;
uid: Integer;
j: Integer;
filename: WideString;

begin
success := 0;

// This example requires 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 email headers into a bundle object:
bundle := TChilkatEmailBundle.Create(Self);
headersOnly := 1;
success := imap.FetchMsgSet(headersOnly,messageSet.ControlInterface,bundle.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Scan for emails with attachments, and save the attachments
// to a sub-directory.
fullEmail := TChilkatEmail.Create(Self);
emailHeader := TChilkatEmail.Create(Self);
i := 0;
while i < bundle.MessageCount do
  begin
    // The bundle contains email headers..
    bundle.EmailAt(i,emailHeader.ControlInterface);

    // Does this email have attachments?
    // Use GetMailNumAttach because the attachments
    // are not actually in the email object because
    // we only downloaded headers.
    numAttach := imap.GetMailNumAttach(emailHeader.ControlInterface);

    if (numAttach > 0) then
      begin
        // Download the entire email and save the
        // attachments. (Remember, we 
        // need to download the entire email because
        // only the headers were previously downloaded.

        // The ckx-imap-uid header field is added when
        // headers are downloaded.  This makes it possible
        // to get the UID from the email object.
        uidStr := emailHeader.GetHeaderField('ckx-imap-uid');
        uid := StrToInt(uidStr);

        success := imap.FetchEmail(0,uid,1,fullEmail.ControlInterface);
        if (success = 0) then
          begin
            Memo1.Lines.Add(imap.LastErrorText);
            Exit;
          end;

        success := fullEmail.SaveAllAttachments('attachmentsDir');

        for j := 0 to numAttach - 1 do
          begin
            filename := imap.GetMailAttachFilename(emailHeader.ControlInterface,j);
            Memo1.Lines.Add(filename);
          end;

      end;

    i := i + 1;
  end;

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