SmarterMail 5.x delivers 99% antispam out-of-the-box, robust antivirus, and enhanced security measures without expensive add-ons.SmarterMail 5.x is the Cost-effective Alternative to Microsoft Exchangeв„ў for businesses and ISP/Hosting environments. The richly-rendered Web interface includes advanced AJAX controls that bring desktop application performance to the Web. SmarterMail 5.x is scalable, easy to use, and manage with extensive reporting, throttling, and a new industry-leading Events architecture providing detailed Notifications and automated Actions. SmarterMail delivers 99% antispam, robust antivirus, and enhanced security measures (intrusion detection, etc.) without expensive add-ons. Collaboration features in the Enterprise edition make SmarterMail the alternative to Microsoft Exchangeв„ў for those requiring Synchronization with Pocket PC, Smartphones, and Microsoft Outlookв„ў. SmarterMail Free Edition is limited to 10 email users on a single domain, and includes all the functionality of SmarterMail Enterprise Edition. System Requirements: 1 GHz CPU, 512 MB RAM, 150 MB DISK