Hi, Right now people that are not list members can submit messages to the list. We need to stop this. Also, all messages need to be approved by a moderator (which works fine now). Here is my current list header... Active-Chemistry Subscription= closed Ack= Yes Confidential= No Validate= No Reply-to= List,Respect Review= Owners Send= Editor,Hold Editor= [log in to unmask] Errors-To= [log in to unmask] Owner= [log in to unmask] Notebook= Yes,c:\inetpub\wwwroot\archives,Monthly,Private Attachments= No Thanks for your help.