Gordano Messaging Suite is a complete mail server, with integrated anti-virus, anti-spam, and content filtering. As a mail server, it offers a cost-effective alternative to Microsoft Exchange and integrates tightly with Outlook in the same way that Exchange does. There are many additional features, such as support for dial-up collection of email from your ISP by POP3. It also has Extended Turn (ETRN) support for dial-up to extend SMTP should you need to use it. Client machines can be supported via POP3, IMAP, or a webmail interface.
The Gordano Message Suite is not an anti-virus solution per se, it is a complete web-based messaging system with email, instant messaging, calendar feature and message filtering. The whole lot is managed from a central web console which is clean and consistent, with the exception of a Windows utility to add users to the database.
Gordano is a company that has made the messaging arena its own. Its NTMail product was a revolution when it was first launched in 1994, and it was recently re-branded and overhauled to become Gordano Messaging Suite (GMS).
Installation is simple and straightforward, and Gordano has also ensured that the product is suitable for all major operating systems. Once installed, navigation is easy: the product is logically structured with well-laid out GUIs. Both configuration and management are carried out via a web-based interface.
TFS Technology has taken a holistic approach to the whole subject of internet and email security, and the result is the extremely powerful Secure Messaging Server. The server acts as a firewall, ensuring that infected inbound emails don't get anywhere near your network.
Installation and configuration (Windows only) are simple and an application, TFS Administrator, does most of the hard work for you. This application is used for all configuration tasks, unless you want to do this remotely, in which case another product, TFS Secure Messaging Manager, allows this through a web browser. The Manager is also responsible for the security functions of the product.
Trend Micro is another familiar name in the anti-virus world. It has now branched out into email security with its InterScan Messaging Security Suite (IMSS), which, unsurprisingly, places a heavy emphasis on virus containment, but which also contains a number of other extremely valuable features.
IMSS is another spool-and-forward product, which means that the machine it is installed on should have a hard drive sufficient to handle your usual throughput of email. For this reason, and for reliability, it shouldn't really be installed on the SMTP server. Depending upon the needs of your network, it can be installed either in front of or behind your existing firewall, or even used in place of a firewall if - for some strange reason - you don't actually have one.