(Delphi ActiveX) Download Unread Email from IMAP Mailbox

Download unread email messages from an IMAP mailbox.

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
imap: TChilkatImap;
success: Integer;
messageSet: IMessageSet;
fetchUids: Integer;
seenSearch: WideString;
notSeenSearch: WideString;
bundle: IChilkatEmailBundle;
i: Integer;
numEmails: Integer;
email: IChilkatEmail;

begin
// 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.someMailServer.com');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Login
success := imap.Login('admin@chilkatsoft.com','myPassword');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Select an IMAP mailbox
success := imap.SelectMailbox('Inbox');
if (success <> 1) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

fetchUids := 1;

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

// Get the set of unseen message UIDs
messageSet := imap.Search(notSeenSearch,fetchUids);
if (imap.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// Fetch the unseen emails into a bundle object:

bundle := imap.FetchBundle(messageSet);
if (imap.LastMethodSuccess = 0) then
  begin

    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

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

    Memo1.Lines.Add(email.GetHeaderField('Date'));
    Memo1.Lines.Add(email.Subject);
    Memo1.Lines.Add(email.From);
    Memo1.Lines.Add('--');

    i := i + 1;
  end;

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