Short description of Anti Spam Boy 2.3: It detects spam before it reaches the mail system and kills the receive process immediately. Saving you a lot of bandwidth. Spam will not reach your mailboxes. It works with any e-mail client, and supports an unlimited number of e-mail accounts. Setup is simple with a few clicks. There is no need to reconfigure your e-mail client and you can manual enter unwanted spammer's domains.