It\'s free. Download and install in less than 5 minutes. This video will show you how.MailChannels Traffic Control provides innovative email traffic shaping solutions for organizations of all sizes, enabling customers to simultaneously solve their spam problems and reduce their email infrastructure costs. For complete instructions on installing and configuring, check out the PDF Traffic Control Manual.\n\nInstallation\n\nInstalling Traffic Control is easy. Simply:\n\n 1. Read the installation guide in the Traffic Control manual\n 2. Download the tar ball\n 3. Run install.sh as root\n 4. Follow the instructions presented by the installer\n 5. Modify your mail server configuration to accept Traffic Control as a proxy\n 6. Start Traffic Control using the start-proxy.sh command\n\n \n\nThe following terminal output can be used as a quick guide to the install process -- note that a complete installation guide is provided in the manual:\n\nroot@example# tar xzf TrafficControl-latest-i686-Linux-2.6.tar.gz\nroot@example# cd TrafficControl-latest-i686-Linux-2.6\nroot@example# ls\nCHANGES chroot docs install.sh proxy_conf_cleanup.pl\nLICENSE conf install.func migrate_acl_files.pl scripts\nroot@example# ./install.sh\n\nThis script will install MailChannels Traffic ControlAs part of the installation process you will be asked for your\nname and email address. This information along with TrafficControlversion information and the output from \'uname -a\' will be sent to......\n\nInstallation complete!\n\nroot@example# /opt/TrafficControl/scripts/start-proxy.sh\n\nStarting TrafficControl ... Ok\n\nroot@example# telnet example.com 25\nTrying 192.168.3.48\nConnected to example.com.\nEscape character is \'^]\'.\n220 MailChannels Traffic Control (3.1.007)\nEHLO foo.com\n250-localhost ok\n250 SIZE 20971520\nMAIL FROM: \n250 ok\nRCPT TO: \n250 2.1.5 Ok\nDATA\n354 Ok\nSubject: Hi There!\n\n.\n250 2.0.0 Ok: queued as BC4AB180772\n\nLicense\n\nTraffic Control 3 for Spam Assassin is commercial software, but is free for non-commercial use (i.e. \"Free\" as in \"Free Beer\"). Whether you are a commercialor non-commercial user, a valid electronic license is required if you receive more than 10,000 SMTP connections per day. See below to find out how you can obtain a license.\n\nNote: Academic institutions and government bodies are considered commercial users; however, special discounts are available.\nCommercial Users - How to obtain a 30-day trial license\n\nFor a free 30-day unlimited trial license, or to inquire about buying Traffic Control, please contact sales@mailchannels.com.\nNon-Commercial Users - How to obtain an unlimited license\n\nIf you are a non-commercial user (for example, a hobbyist who provides anti-spam for friends and family), and receive more than 10,000 SMTP connections per day, please send an email to free-beer@mailchannels.com describing how you will use Traffic Control. We will be happy to provide you with an unlimited license.\nTechnical Support\n\nIf you need Technical Support, send an email to support@mailchannels.com. Note that a user forum will be available soon to provide a self-support model for non-commercial users. email, filter, howto, mailchannels, network, security, smtp, spam, spamassasin, tutorial