We keep receiving the following message from root (dedicated). Some changes were made to mail config due to PBL issues with local ISP IPs of some customers. I don't want to manually update the config every time. What's the way out? What do we lose by not updating the config file?

TIA.

cPanel was unable to automatically merge your Exim configuration with the new settings that shipped with the build you have installed (11.24.0-CURRENT_30944) because you have a custom ACL configuration which cannot be automatically configured.

To avoid any mail downtime, we thought it was best to leave your previous configuration intact until the new configuration can be properly installed. In order to complete this configuration update, you will need to manually merge your configuration with the new configuration settings. Please follow the steps below to complete this update:

1. Enter the Advanced Configuration Editor
2. Notate any custom changes you have made in the ACL section.
You may also which to make a copy of /etc/exim.conf.local
and /etc/exim.conf.localopts as custom settings are contained in these files.
3. Click the 'Reset ACL Config to Defaults' button.
4. Reinstall your advanced custom settings.

Note: Until you manually complete this update, automatic spam filtering may have been rendered inoperable to prevent any mail loss. (This generally only applied is you were upgrading from cPanel 10.x)

Current Config Version: 4.900000
New Config Version: 5.400000