CommuniGate Pro, the Internet Messaging server application implementing:

* Multi-domain support with and without IP multihoming.

* Multi-mailbox accounts and shared mailboxes.

* Internet mail exchange service using the ESMTP protocol.

* Anti-Spam and other protection mechanisms.

* Mailbox access with any POP3 mail client.

* Mailbox access with any IMAP4 mail client.

* Mailbox and Groupware access using Microsoft® Windows MAPI interface (including the Microsoft Outlook in the "groupware" mode).

* Mailbox, Groupware and Data access using any Web browser (customizable multi-lingual "WebUser" Interface), as well as any WAP/WML and/or I-Mode compatible wireless devices.

* Groupware Information storage and processing using the iCalendar and vCard standards.

* Personal Web Sites for every account, with HTTP, FTP, and TFTP access.

* Mailing List manager with automatic bounce processing and a Web interface to list archives.

* Secure Mail (S/MIME) WebMail implementation (encryption/decryption, digital signing, signature verification).

* SIP-based Instant Messaging, audio, and video communication with NAT support.

* Local and Distributed Directory and LDAP services.

* Distributed Domains for Distributed Multi-Server configurations.

* Multi-Server Cluster support for large sites (250,000 - 5,000,000 active accounts).

* Cluster of Clusters support for extra-large sites (more than 5,000,000 active accounts).

* Dial-up support for very small sites; ETRN, ATRN, and UDWA mail delivery.

* Remote Accounts polling using the POP3 protocol.

* Remote administration using any Web browser.

* Remote administration using the CLI module.

* Remote monitoring using any SNMP Manager.

* Secure Authentication (SASL) and Secure Transfer (SSL/TLS) for SMTP, IMAP, POP, HTTP, LDAP, ACAP, PWD and Administration sessions.

* GSSAPI (including Kerberos V5) authentication and security.

* Automated Mail Processing Rules.

* The Lawful Interception functionalty.

* Automated Event Request processing for resource scheduling.

* HTTP-based subscribe and publish operations with Calendar and Tasks folders.

* High performance interface for external anti-virus, anti-spam, and content filtering programs.

* The RADIUS service for Network Access and Terminal Servers.

* Remote password modification using the poppwd protocol.

* Optional LDAP-based provisioning for all Domain types.

* Mailboxes in the form of text files, file folders, and other data containers.

* The ACAP address book and roaming support, and Netscape® Roaming via HTTP.

* The Notification Alerts mechanism.

* The Events mechanism for proactive server monitoring.