MDaemon gateways can serve multiple applications for corporate and service provider systems. Gateways 5 Alt-N Technologiesħ MDaemon Gateways MDaemon Gateway Applications MDaemon comes with a set of options for configuring, maintaining and operating gateways. The arrows between the gateway and customer servers shows two online and one dialup domain server for customers. The arrow between the gateway and the Internet represents public messages from any source. The illustration on the next page shows a service provider gateway. The first illustration shows a company gateway serving multiple domain servers located behind a firewall. Gateways can also serve as realtime backup devices should the primary server fail. Optionally, a gateway can join forces with a firewall to provide additional security for the servers on the protected side. gateways can also block unsolicited mail or mail violating company policy before it reaches the domain servers. Gateways can work with both online and dialup domain servers. For both companies and service providers, the gateway simply stores incoming messages then forwards them to the specified domain servers using schedules or when polled. Except for special uses, the server does not contain any accounts of its own. For a service provider, an gateway collects messages for multiple customer domains. For company use, it typically sits on the Internet side of a network and collects messages for internal servers. It regulates and routes for one or more domain servers. Gateways 4 Alt-N Technologiesĥ Gateways An gateway is similar to one serving a network. The illustration shows a network gateway and firewall at work. A gateway can also operate with an optional firewall. It can route and limit network traffic in both directions. It can serve as a buffer between the larger network and the local computers.
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The gateway shares its connection with other computers on a local network. Digital Gateways A gateway in a digital communications network is a machine connected to the Internet or some other large system. In theory, gateways may sound like restrictive devices, but in practice, they improve the quality of life. The amusement park gateway limits the number of people who can get on a ride. The gate at the concert hall slows the inflow of the crowd for the ticket taker. On the street the traffic light increases safety and usually smooths the movement of traffic. It might be a revolving door, a traffic light, a turnstile or, well, a gate. Gateways 3 Alt-N TechnologiesĤ Gateways Real Life Gateways In real life a gateway regulates the flow of people and things. One copy of MDaemon can simultaneously operate gateways for dozens of domains, even while running a primary domain server of its own.
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Gateways can also be configured to supply automatic realtime mail storage backup when a primary domain goes offline for any reason. Larger establishments can employ securityhardened gateways to provide protection and content filtering for their more vulnerable enterprise systems. The primary domains in such cases can have either permanent or dialup connections to the Internet.
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This is because a service provider supplies the gateway at a reasonable cost by sharing the hardware and software with other smaller ventures. For a small organization, a gateway can make a private domain affordable. gateways can help both large and small enterprises solve some of the problems inherit to Internet services. A gateway typically has no individual accounts.
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9 Mail Forwarding ATRN/ERTN/DomainPOP Quotas Automatic Gateway Configuration Gateways 2 Alt-N Technologiesģ Abstract An gateway collects, stores and forwards messages to a primary domain server. Product and company names mentioned in this document may be trademarks.Ģ Contents Abstract. 1 Gateways Using MDaemon 6.0 Alt-N Technologies, Ltd 1179 Corporate Drive West, #103 Arlington, TX Tel: (817) Alt-N Technologies.