(Delphi DLL) Download Unread Email from IMAP Mailbox

Download unread email messages from an IMAP mailbox.

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;
seenSearch: PWideChar;
notSeenSearch: PWideChar;
bundle: HCkEmailBundle;
i: Integer;
numEmails: Integer;
email: HCkEmail;

begin
// This example assumes 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,'admin@chilkatsoft.com','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;

fetchUids := True;

// Find emails marked as seen or not already seen:
seenSearch := 'SEEN';
notSeenSearch := 'NOT SEEN';

// Get the set of unseen message UIDs
messageSet := CkImap_Search(imap,notSeenSearch,fetchUids);
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Fetch the unseen emails into a bundle object:

bundle := CkImap_FetchBundle(imap,messageSet);
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    CkMessageSet_Dispose(messageSet);
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Display the Subject and From of each email.
i := 0;
numEmails := CkEmailBundle_getMessageCount(bundle);
while i < numEmails do
  begin
    email := CkEmailBundle_GetEmail(bundle,i);

    Memo1.Lines.Add(CkEmail__getHeaderField(email,'Date'));
    Memo1.Lines.Add(CkEmail__subject(email));
    Memo1.Lines.Add(CkEmail__from(email));
    Memo1.Lines.Add('--');

    CkEmail_Dispose(email);
    i := i + 1;
  end;

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

CkMessageSet_Dispose(messageSet);
CkEmailBundle_Dispose(bundle);

CkImap_Dispose(imap);

end;