Issue :
When an user logs into webmail , he should just have one email client ( say roundcube ) whereas all other users should see all the three.
Solution :
Suppose the username is ‘xyzco’ for the domain xyz.com.
1. SSH into the server as root, and edit the file /var/cpanel/users/xyzco
2. Now, if you want to disable all webmail applications and enable roundcube mail, you would need to add following lines:
skiphorde=1
skipsqmail=1
skiprcmail=0
You can specify the values as per your requirement.
3. Then run the following command :
/scripts/updateuserdomains
4. And restart cPanel :
/etc/init.d/cpanel restart
Now, when the user xyzco logs into webmail, he will only see roundcube mail, and not the other two 🙂