Configuration of Postfix Mail Server Supporting Anti Spam and Anti Virus

This work provides starting guide for simple Postfix mail server configuration. Then  I configured the Postfix mail server to support Anti-Spam and Anti-Virus, using two methods.Method 1: With Postfix, SpamAssassin, ClamAV and Amavis-newMethod 2: With Postfix, SpamAssassin, ClamAV and Procmail The report includes the following sectionsHow Postfix receives mail:How Postfix delivers mailStarting guide for quick Postfix configurationPostfix mail server and Dovecot configurationInstalling ClamAV and SpamAssassinInstalling and configuring Squirrelmail:Method 1 to support Antivirus and Antispam: Using Postfix, Amavis-new, ClamAV, SpamAssassinMethod 2 to support Antivirus and Antispam: Using Postfix, Procmail, ClamAV, SpamAssassin