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SIMS
Stalker Internet Mail Server
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Welcome to Stalker
Internet Mail Server (SIMS), a MacOS server application implementing
Internet mail exchange service using the SMTP protocol and remote mailbox
access using the POP3 protocol.
The high performance Internet Mail Server relies on OpenTransport (version
1.1.1 or better). The current version easily handles 100+ incoming and 100+
outgoing simultaneous connections on a Macintosh Quadra or low-end Power
Macintosh machines.
Server Features
- The server Router can route messages on a per-domain and on a per-account
basis. The Router supports:
- domain-level routing;
- account aliasing;
- foreign account aliasing.
- SIMS can handle accounts for multiple domains. The Multi-Domain features
use the Router and include:
- direct mapping;
- domain-based account name mapping;
- "true multihoming" for systems with multiple IP addresses.
- SIMS supports dial-up and other client mail servers with registered
or virtual domains:
- For systems with dynamic IP addresses: Unified Domain-Wide POP Accounts
can be created.
- For systems with static IP addresses: SMTP feeds using RFC1985 (ETRN)
are implemented.
- The SMTP subsystem has "anti-spam" features. The Server can:
- stop strangers from using the server as a mail relay;
- reject mail from the IP addresses of known offenders;
- verify return-path validity to reject mail from "unreachable sources";
- reject mail from certain domains or from certain accounts.
- SIMS accounts can include:
- an auto-reply text (or a "vacation message").
- a mailbox accessible using any POP3 client application;
- a distribution list to "reflect" incoming messages to multiple
recipients;
- a folder keeping messages as individual files (for automated mail processing
with third-party utilities);
- SIMS allows for remote password modifications and new mail notifications.
- SIMS generates Return-Receipt messages when it delivers mail to local
accounts.
- User authentication is performed using OS Users&Groups information
and/or the SIMS own authentication.
- The SIMS mailbox format is identical to the UNIX mailbox format, and
if TCP/IP services are not available on the LAN, any mailer that can read
UNIX mailboxes directly (such as Eudora®) can
also work with mail accounts via File Sharing.
- SIMS supports both TCP and AppleTalk connections, so it can be used
with mailers that can work via an AppleTalk network (such as Claris® Emailer). SIMS can be used on non-TCP networks, and
it allows remote users to check their mailboxes on the server when they
are connected to the server via an ARA connection.
- SIMS has a centralized System Log. The Server kernel and all its components
can generate Log records of any detailization level, simplifying troubleshooting.
- Additional features include:
- EOL tolerance
- Relay Host name verification
- Message-Id header insertion.
Server Administrating
- The system design allows you to configure, control, and monitor the
server from any workstation on your LAN. The CommuniGator application version 2.7 and better (the
client component of the CommuniGate(tm) Messaging System)
can be used to perform all administrating operations. When talking to the
Stalker Internet Mail Server, the CommuniGator application enables only
its administrating functions.
- Stalker Internet Mail Server can be configured remotely (via the Internet)
using any Web browser. SIMS has a built-in HTTP (Web) server so it does
not require any additional Web Server application to support remote configuration
features, and it does not conflict with any other Web Server running on
the same computer.
- Remote administration includes:
- configuring the Server, Router, and all communication modules;
- creating, removing and updating of user account information;
- monitoring modules activity;
- monitoring System Logs;
- working with Server queues and individual messages in the Server queues.
- Account management and other administrating functions are available
via an AppleEvents/AppleScript interface.
Stalker Internet Mail Server vs. CommuniGate(tm)
Server
While the CommuniGate Server is a MESSAGING system, the Stalker Internet
Mail Server is an Internet Mail server only: as with any other Internet
mail-only server (UNIX sendmail, Eudora/Apple Internet Mail Server, AppleShare
5.0, etc.), it supports only SMTP, POP and poppwd protocols. Message contents
are not processed/converted with the server: all functions are expected
to be implemented within client mailer applications accessing the server.
As with other Internet-only servers, the Stalker Internet Mail Server
is designed to use direct Internet connections, while the CommuniGate Server
can use the same protocols via dial-up links.
However, the SIMS does use some of the CommuniGate technologies:
- the interrupt-driven communication algorithms for high-speed message
transfer on non-dedicated servers;
- the CommuniGate Address Parser and the CommuniGate Router;
- the Internet protocols implementation;
- anti-spam mechanisms;
- support for dial-in SMTP clients;
- remote administrating;
Please see the Comparison Chart.
Support and Discussions
Please subscribe to the SIMS@stalker.com mailing list to discuss the
Stalker Internet Mail Server related issues. To subscribe to this mailing
list, please send any message to SIMS-on@stalker.com.
Since the traffic on this mailing list is rather high, you may want to
subscribe in the Digest mode. To subscribe to the List in the Digest mode,
send a message to SIMS-digest@stalker.com
What is New in SIMS Updates?
The Stalker Internet Mail Server is being updated on a regular basis.
You can get the history of updates and bug fixes from the SIMS
History page.
Where can I Get the Latest Versions?
The Stalker Internet Mail Server is being updated on a regular basis.
CommuniGate is a trademark of STALKER SOFTWARE, INC.
