What is IP Blacklist | How to Block IP Addresses | Imperva
GitHub - WaGi-Coding/WaGis-Mass-IP-Blacklister-Windows: This Tool blocks a Mass of IP Adresses via the Windows Firewall. You can run in Automatic-Mode using a Abusive IP List like blocklist.de
What is a Blocklist?
IP Blocks in Office 365 : Foetron - Microsoft Cloud Solutions Provider
Allow Listing by IP Address in Exchange 2013, 2016, or Microsoft 365
EOP / Office 365: Block or Allow IP Address in Connection Filtering « MSExchangeGuru.com
IP Address Blacklists - Add-Ons - IPFire Community