Internet Access
The EnServe links your office network (also known as your Local Area Network or LAN) to the Internet through an ADSL modem or router or other gateway router.
If the EnServe is managing your LAN's Internet access it can allow you to control which computers on your LAN have access to the Internet or World Wide Web.

Security
If the EnServe is managing your LAN's Internet access it employs a powerful system known as a firewall to protect the computers on your network.
The firewall's job is to block attempts to access your network from the Internet while still allowing unhindered access to the Internet from the computers on your network.

E-Mail
The EnServe acts as an e-mail manager for your network, delivering internal e-mails to people's mailboxes and forwarding e-mails destined for the Internet to the appropriate computers on the Internet that can handle delivery.
It can also collect incoming e-mail from POP3 mailboxes and accept incoming mail using the standard SMTP protocol.
The EnServe also provides more advanced features such as e-mail forwarding.

Anti-Virus
If you asked to have the supplementary Anti-Virus software added to the EnServe it can scan all incoming e-mail for viruses and also regularly scan it's own hard-drive for viruses.

Anti-Spam
Your EnServe can examine all incoming e-mail and decide whether or not it is junk e-mail.
There are a number of options that control how your EnServe deals with junk mail.

Web Cache
If your EnServe is managing your LAN's Internet access it can speed up web browsing and free up as much of your Internet connection's bandwidth as possible by storing a copy of all web sites visited by computers on your network. Unless the original page has changed any subsequent requests for the page are served from the EnServe rather than the original web server on the Internet.

Domain Name Service (DNS)
The EnServe acts as a 'name server' for your network - helping the computers on your network find each other and other computers on the Internet.

File Sharing
The EnServe acts as a SMB (also known as Windows File and Printer Sharing) server.
It allows people on your network to share files easily and to store their documents in a central location - making backups and anti-virus scanning easier and allowing them to access them from any computer on your network.

Intranet
The EnServe provides a basic Intranet service, accessible to anyone on the local network with a web browser.
All people and groups with shared folders will also have folders that appear on the Intranet.
Both public (available to all) and private (password protected) folders are made available.