Deploying Suse Linux Enterprise Server
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Implementing Mail Services
- Configuring the Mail Server
- Enabling Spam & Virus Protection, Using Fetchmail
- Enabling Mail for Users and Groups, Advanced Configurations
Introduction
Configuring mail services on GNU/Linux servers can sometimes be a daunting task. Not only do you have to know how to configure different services, but you also have to figure out how to get all these services to work together in order to deliver mail.
With this in mind, Suse Linux Enterprise Server includes a Yast Module to handle configuring all of the various services involved with a mail server. However, in order to use this module you must follow certain guidelines when setting up your server. Keeping in mind the old adage that "You can't please everyone all of the time", you need to look at how you must manage your server in order to utilize the Yast Mail Server module.
The first item you must look at is the fact that you must configure the DNS Server on the machine and you must enable LDAP support within the DNS Server. You do not need to have an advanced DNS Server setup to do this (although this is recommended for every site), you simply only need to create a simple zone within the DNS Server for every domain you want to receive mail.
Along these same lines, the next requirement to utilize the Yast Mail Server Module is the fact that you must use an LDAP server to maintain all of the users on your network. This is where you need to make a decision. If your server is simply a stand alone server that you want to configure as a mail server, you may not want to deal with the overhead of maintaining an account on the server for every email user that you setup. For instance, using the Yast Mail Server module may not be the best tool for the job if you are an ISP with thousands of accounts.
However, if you are configuring a main server for your network and want an easy way to allow your users to communicate through email, the Yast Mail Server module may be just what you need. Just keep in mind that this configuration is only utilized for mail. This is not meant to be a "Workgroup Collaboration" solution. If you are looking for something more advanced, you may want to look at Novell's GroupWise Server solution, Open-Xchange Server, or utilize another solution for anything this setup may lack. I have found that this mail solution works extremely well for most deployments, although a few organizations have also utilized other products, such as Google Calender for their scheduling needs.
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