Tray Helper it's compact award winning application with many features (f/e: email checker, auto mail responder, anti-spam, popup-killer, event reminder and more).
There was a new version released recently (November 18, 2003) with following changes:

- Fixed bug in decoding e-mail attachments with names encoded in quoted-printable format.
- Fixed incomparability with RFC 2554 when sending mails with authentication.
- Removed window flash on startup (Windows XP and 2000).
- Smart loader of Tray Helper is now capable of detecting more possible problems with system DLL files. If your system is outdated - loader can download and install missing libraries so application will run fine.
- It's possible now to turn-off "About application" tab. It's a good idea when your Tray Helper has many plugins enabled and list of tabs of application is getting too long.
- Added feature to prompt for password each time you want to check / send an e-mail.
- Added feature to add character encoding data to outgoing messages.
- Some improvements in event reminder part of application.
- Improved mail filters - now you can set rules to rate message and take some actions when rating will achieve defined value.

More info and FREE download at: http://www.trayhelper.com