I recently had an issue with incorrect ownership of all files under /home/user/ due to mismatched UIDs after a cPanel server restore. The following script took care of this in no time.

echo -e "Checking ownership of /home/user \n"
for i in `ls /var/cpanel/users/`
do
if [ "$i" != "root" ]; then
chown -R $i:$i /home/$i
chown $i:nobody /home/$i/public_html /home/$i/.htpasswds
chown $i:mail /home/$i/etc /home/$i/etc/*/shadow /home/$i/etc/*/passwd
echo $i
fi
done

A simple and configurable script for direct login to the cPanel webmail applications(Horde, SquirrelMail, RoundCube).

<?php
// Modified version of the standard cPanel login page to allow direct login to a specific webmail application.
// Must set $host , $login_path , and $mail_app, defaults to cPanel proxy subdomains and SquirrelMail
$host = 'example.com';
// Uncomment one of the following to set login URL type

View full script

I recently needed to block a large amount of incoming email via IP range in cPanel for a single account versus blocking the IP range on the entire server. This was accomplished using cPanel’s Account Level Filtering for Mail.

Here is the filter setting using 192.168.0.0/24 as an example.

Rules:
Any Header
matches regex
192\.168\.{1,3}\.{1,3}

Action:
Discard Message