I have two questions. 1) If you have Unmanaged server, how do you prevent your clients/users from spamming on your servers? do you use any software or any anti spamming script to prevent them from spamming? 2) 2nd when if you have managed server, won't you worry about spamming because of management? or a fees will also be charged in case a server is managed? I don't know, i want to move now on a dedicated server but i am so worry about management specially in case of email spamming because it affects a lot, blacklists a company.