33.5 Installing Postfix on Ubuntu
By default, the Ubuntu installation process installs postfix for most configurations. To verify if postfix is already installed, use the following apt command:
# apt -qq list postfix
If apt reports that postfix is not installed, it may be installed as follows:
# apt install postfix
In most cases the Internet Site option will be the most useful option. This will configure some basic settings designed to send and receive messages associated with your web site domain name. With this option selection, tap the Enter key to proceed to the next screen:
Figure 33-1
On the above screen, enter your domain name before pressing the Enter key once again.
