Introduction to Anti Spam With fraudulent, inappropriate and offensive emails being delivered in vast quantities to adults, children and businesses every day, spam protection is an essential component of your network's security strategy. Spam wastes network users' time and network resources, and can be dangerous too. GFI MailEssentials tackles spam protection at server level and eliminates the need to install and update anti-spam software on each desktop. GFI MailEssentials includes a number of simple yet effective methods to virtually eliminate spam from your network. They can be divided in 3 'methods': 1.Header checking – this method analyses the header of the mail to detect whether a mail is spam or not 2.Keyword checking – this method analyses the content of the mail and the subject of the mail and based on the content decides if the mail is spam or not. 3.Use of Blacklists & White lists – this method uses blacklists to block mails from known spammers. White lists are lists of email addresses from which you always wish to receive mail. Anti spam configuration When GFI MailEssentials finds a spam message, it can delete the message, move it to a central folder, or forward it to an e-mail address. This last option allows you to setup a public folder where all spam is sent, so that users can periodically review if the anti spam rules have been set up correctly. Note: To stop spammers from relaying their mail through your mail server, you need configure your mail server to disallow mail relaying. For more information on this, consult the mail server documentation.