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

Scan for emails with attachments and save attachments.

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, EmailBundle, Imap, Email, MessageSet;

...

procedure TForm1.Button1Click(Sender: TObject);
var
imap: HCkImap;
success: Boolean;
messageSet: HCkMessageSet;
fetchUids: Boolean;
bundle: HCkEmailBundle;
i: Integer;
email: HCkEmail;
numAttach: Integer;
uidStr: PWideChar;
uid: Integer;
fullEmail: HCkEmail;
j: Integer;
filename: PWideChar;

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

imap := CkImap_Create();

// 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,'myLogin','myPassword');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

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

// We can choose to fetch UIDs or sequence numbers.
fetchUids := True;

// Get the message IDs of all the emails in the mailbox
messageSet := CkImap_Search(imap,'ALL',fetchUids);
if (CkImap_getLastMethodSuccess(imap) <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Fetch the email headers into a bundle object:

bundle := CkImap_FetchHeaders(imap,messageSet);
if (CkImap_getLastMethodSuccess(imap) <> True) then
  begin
    CkMessageSet_Dispose(messageSet);
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Scan for emails with attachments, and save the attachments
// to a sub-directory.

for i := 0 to CkEmailBundle_getMessageCount(bundle) - 1 do
  begin

    email := CkEmailBundle_GetEmail(bundle,i);

    // Does this email have attachments?
    // Use GetMailNumAttach because the attachments
    // are not actually in the email object because
    // we only downloaded headers.
    // (Had we downloaded the full emails by
    // calling mailman.FetchBundle, we could look
    // at the email object's NumAttachments property.)
    numAttach := CkImap_GetMailNumAttach(imap,email);

    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.
        // If the entire emails were downloaded by
        // calling FetchBundle instead of FetchHeaders,
        // this would not be necessary.

        // 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 := CkEmail__getHeaderField(email,'ckx-imap-uid');
        uid := StrToInt(uidStr);

        fullEmail := CkImap_FetchSingle(imap,uid,True);
        if (CkImap_getLastMethodSuccess(imap) = True) then
          begin
            success := CkEmail_SaveAllAttachments(fullEmail,'attachmentsDir');
            CkEmail_Dispose(fullEmail);
          end;

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

      end;
    CkEmail_Dispose(email);
  end;

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

CkMessageSet_Dispose(messageSet);
CkEmailBundle_Dispose(bundle);

CkImap_Dispose(imap);

end;

 

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