Add automatic domain checking using PyFunceble to check if the domains in the list are still active and if they are still hosting the bad content that we want to block
Add automatic IP checking using a service like VirusTotal to check if the IPs in the list are still active and if they are still hosting the bad content that we want to block
Add automatic email checking using a service like Hunter.io to check if the email addresses in the list are still active and if they are still hosting the bad content that we want to block