I need IMAP compiled into php

All:

I have read all of the posts I could find. I have run through this at least 6 time.

Can someone please tell me what process I need to follow.

I did this.
https://help.directadmin.com/item.php?id=341

This guide is it current? I have centos7, custombuild 2, the most current stable version of directadmin, and php 56 and 71 with fpm. It doesn't work for me.