Email Server Setup - Domain Configuration
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After setting up the correct client IP address filters, you need to start adding domains and users to the server. CommuniGate, and most email servers, allow for one server to host multiple domains. In CommuniGate, this is done by simply using the “Create Domain” button after putting the domain name in the text box next to the button. This should be “yourdomain.com”, not “www.yourdomain.com,” as you will most likely want people to send email to an address like “email@example.com” rather than “firstname.lastname@example.org.”
Once you’ve added your domain(s), select that domain and go to the “Domain Settings” section. This will allow you to set up any preferences you might want on that domain. There isn’t anything particularly critical or illuminating; the settings are all pretty simple. After you’ve configured these to your liking, you can start adding users. Again, after setting up the users you can customize the settings for each one, such as restricting the amount of storage they can make use of and other such things.
This is one of the most important components to configure correctly. If you don’t set up relaying correctly your server can become an unknowing pawn for spammers or worse, get stuck on an Open Relay Blacklist, which can get mail from your server refused and cause a big headache for you until you prove you’ve fixed your server.
In order to set up relaying correctly you will first access the Settings group on the left side of the CommuniGate admin and then click on the SMTP icon. This brings up the SMTP settings. At the bottom of this page is a section called “Relaying.” First set the “Relay to Any IP Address” option to “clients.” This makes sure that your server will only forward messages from IP addresses you have listed as clients or who have authenticated. At the top of this page is the option “Send directly to recipients” or “forward to.” This option should be set to “Send directly…” if you have a broadband connection or are permanently connected to the Internet. The “forward to” option is used when you only have an intermittent connection (such as dial-up) and you just want to get the email out of your server as fast as possible and allow some other SMTP server to actually connect to the recipient’s servers to deliver the mail.
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