People signing up on your community just to post spam is a never ending battle much like spam in your email inbox. IPS Community Suite has tools to help you fight that battle. You will find the various methods in combatting spam in the following location in your ACP Members -> Content Moderation ->Spam Prevention Spam Defence Service The IPS Spam Defence Service is a free service provided by IPS to clients with an active licence. Each time a user signs up to you