Hallo to everyone Our IT Manager says the the only use of Outlook 2003(without rules) reduce the spamming until 90%.....i know the it has an anti-spam filter but it's true that the benefit is so high(90%!!!)) AS mail Server we have MICROSOFT ECHANGE 5.5......... i WOULD LIKE TO KNOW MORE ABOUT IT...MAY YOU HELP ME... ps:EXCUSE ME FOR MY ENGLISH!!! cIAO gio