Working with Postfix
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.
How to do it...
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.
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