iPhone mobile config file auto emailed on email account creation
Configuring iPhone email is still a PITA with cPanel but, a SUPER easy way to get iPhones (and others) configured will take some help from cPanel to make it happen via some URL redirects/scripts.
What would be nice is a Tweak Settings setting, so that for every new email account that's setup, a default welcome email is sent to the new users inbox. That email would contain instructions (that we get to configure/type via the setting) and link to their webmail account. Once they logged into that webmail account, they would be redirected to the cPanel "Configure Mail Client for xxx" screen where they could then easily tap the link for the software/phone they want to auto-configure.
This would be easy to document in a how-to video or knowledgebase articles via the WHMCS Welcome and support emails.
mod note: typo fixed in post title