In a previous recipe, we learned how to install and configure Postfix as our domain-wide e-mail server. When it comes to working with e-mails, there are lots of different tools and programs available for Linux and we already showed you how to send e-mails through the
sendmail program as well as the
swaks utility. Here in this recipe, we will show you how to work with one of the most commonly used mail utilities in Unix and Linux, called
mailx, which has some useful features missing in the sendmail package for sending mails or reading your mailbox.
We will begin this recipe by installing the
mailx package on our server running our domain-wide Postfix service, as it is not available on CentOS 7 by default.