The Greylisting Control Panel (GCP) is a GUI for the antispam implementation "greylisting for qmail". It is neccassary that the pachted qmail version is installed.

With the GCP the greylisting can be managed and administrated. It offers a bunch of useful functions:

• Create whitelists
• Small statistics 
• Block or allow hosts/IPs
• Cleanup the greylisting database
• Clear the greylisting database
• IP whois
• searchfunction
• setup filters for the entries