Do you have experience on the easiest way to enable the IMAP c-cl...
How to enable IMAP c-client libraries for use by all applications on your server
Difficulty
Easy
Apache/PHP recompilation with IMAP (c-client) support is a straightforward procedure - all that needs to be done is to log in to WHM, go to Software → Apache Update, click on "Load Previous Config" button (if exists), check the checkbox on the "Imap Module" line and then click "Start Build" button at the bottom of the screen. In about 30 minutes you'll have Apache/PHP with enabled IMAP support.