This can happen when switching the domain name on an account: Sorry, you do not have access to the domain domain.com Remove the following folders, if they exist: /home/user/mail/olddomain.com/xxx /home/etc/olddomain.com Locate and backup the following files: /home/user/.cpanel/ email_accounts.yaml email_accounts.cache Empty email_accounts.cache and edit email_accounts.yaml to remove the accounts/domain no longer required. If it still does …

The following steps will rebuild the default virtual host within cPanel servers.  You can edit the default host file via the following location: cd /var/cpanel/templates/apache2 Update the file vhost.default to your liking. Once the above is complete, run the following: /usr/local/cpanel/bin/build_apache_conf You will then need to update apache accordingly.