I want to write an C# application to send messengers to a list yahoo messenger id. I known that Yahoo will block id which everybody "press" Report Spam. Anybody can tell me how much people "press" Report Spam on Yahoo Messenger that make my id be blocked. How much is the max yahoo messenger id number to send messenger at the same time. In a period, does Yahoo Messenger limit the message that be sent continuously to a list of nicknames? And if you want to send again to that list, do you have to wait for a specified time? Thanks you :)