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→Configuring Postfix
The key options in the main.cf file are:
<pre>
myhostname = mta1.domain.com
mydomain = domain.com
myorigin = $myhostname
inet_interfaces = $myhostname
</pre>
Other settings will have either been set up for you by the installation process or are not needed unless you are feeling adventurous and want to configure a more sophisticated email system.
The format of myhostname is host.domain.extension. For example if your Linux system is called MyLinuxHost and your internet domain is MyDomain.com you would set the myhostname option as:
<pre>
myhostname = mylinuxhost.mydomain.com
</pre>
The mydomain setting is just the domain part of the above setting. For example:
<pre>
mydomain = mydomain.com
</pre>
The myorigin and inet_interfaces options use the settings we have just created so do not need to be changed (although the inet_interfaces may be commented out by default so you should remove the ''#'' at the beginning of this particular line in the main.cf file).
