FOR IMMEDIATE RELEASE

Stalker Announces the Commercial Release of their CommuniGate Pro Server

Key Features: Multi-platform Support
Industry-strength, highly scalable
Administration via the Web
Extensive multi-domain support
Unique IMAP multi-mailbox features
HTTP access to E-mail, built-in Web Mailer
Extensive Anti-Spam techniques
Mailing Lists with Web Access and Interactive Archive Search

MILL VALLEY, CA - September 3rd, 1998 - Stalker Software, Inc. announces
their commercial release of CommuniGate Pro, a Unified Messaging Server
supporting multiple platforms, to add to their family of server
applications which include the popular Stalker Internet Mail Server and the
CommuniGate Messaging Server for MacOS.

CommuniGate Pro is designed for an entire range of systems - from small
offices on up to the major Internet providers. It inherits all the features
developed and successfully used in CommuniGate/MacOS and SIMS, but has
added real scalability in supporting hundreds of thousand of accounts while
still being easy on resources and set up demands.

Supports All Major Operating Systems

The CommuniGate Pro system is designed to run on Windows NT/9x, Linux, Sun
Solaris, FreeBSD, and upcoming Mac OS X Server. On all platforms the
CommuniGate Pro presents the same interface and uses the same file formats,
allowing any organization to switch server platforms in less than an hour.

Components and Features

CommuniGate Pro communication and access modules provide all types of
messaging services required for todays applications. The SMTP module sends
and receives messages via the Internet using ESMTP with DSN and
multichannel queuing. The POP and IMAP modules implement the standard POP3
and IMAP4rev1 protocols as well as most known extensions to these
protocols. This allows virtually all mail applications to work with
CommuniGate Pro mailboxes. The HTTP module supplements these modules with
Web Access to user E-mail, eliminating a need for mailer applications on
client computers. The RPOP module can be used to retrieve mail from remote
hosts via the POP3 protocol.

Web Based Interface

CommuniGate Pro is administered via Web interface and can be easily
configured, controlled, and monitored from any computer on the Internet
using any Web browser application. Installing and configuring CommuniGate
Pro is easy as the basic set up contains default pages where you simply
insert your domain names and then accounts information.

Administrators can monitor the Server status, create, update and modify
user accounts, check the status of the queued messages, delete and redirect
messages in the queue, update the communication modules settings, and
configure the full-featured built-in Router.

Additional features of CommuniGate Pro include: support for dial-up client
mail systems with registered or virtual domains, simultaneous symmetric
access to mailboxes with the IMAP, POP and Web components, full-featured
mailing list server with Web access and interactive archive search, Web
interface to user mailboxes and settings, user-configurable auto-response
("vacation") messages as well as various automated mail processing rules,
extensive routing capabilities, a centralized Log for simple trouble
shooting and much more.

The Web Interface is fully customizable to include anything from logos or
banner advertisements to company announcements.

Anti-Spam Features

Stalker Software is known for the sophisticated Anti-Spam features in their
current mail servers, and CommuniGate Pro is no exception. These features
include: restricted relaying, black-listing IP addresses, domains and
individual accounts; return-path verification, and support for DNS-based
black-list servers (RBLs).

Future Releases

The next major release scheduled for the fall of 1998 will include
implementation of an LDAP server, and the final versions of the Fax, Pager
and UUCP modules.

In addition, for major ISPs, the CommuniGate Pro will offer direct links to
databases so those with huge user bases and/or huge mailing lists will be
able to keep all their account information, subscriber lists, and other
data directly in databases.

The CommuniGate Pro 3.0 (currently in alpha testing) will be able to use
external databases for mailbox storage, while providing the same IMAP/
POP/Web access to these mailboxes, making it an ideal solution for
businesses who need to track their communications.

Try Before You Buy

CommuniGate Pro is marketed in the same manner as the CommuniGate System
for the MacOS. There is a Free Trial Version available at
(http://www.stalker.com/ CommuniGatePro/). This version is the actual
software for purchase, but it adds banners to the transferred messages.
Stalker issues license "keys" that should be entered into the server
settings to disable these banners.

CommuniGate Pro Pricing packages are as follows:

License Includes Price

Professional 50 User License, 2 mailing lists $499.00 USD
Enterprise 1000 User License, 10 mailing lists $1999.00 USD
ISP Unlimited User License, unlim lists $4999.00 USD

From now until December 1st, 1998, Stalker is offering 20% off any license
purchase of CommuniGate Pro. Stalker is also offering a 30% discount for
those who wish to upgrade from CommuniGate/MacOS to CommuniGate Pro.

Updates and support

The updated versions (both betas and finals) are posted on a regular basis.
Update information and free technical support are available via a fast-growing
mailing list cgatepro@stalker.com.