1. How to remove a country from blocking that was added using this method.
(I assume it's some variation of the command used to add a country)
DONE - added to original post above.
2. Instructions for updating the Country-IP Range file.
3. What files need to be protected, or will be broken if there is ever an ISPConfig or debian system update.
Any suggestions, tips or improvements, are welcomed.
Also please check the HOWTO: Spam control for POSTFIX