Hi, We allow relaying of email via our server to our clients using authentication. The problem is that some miscreants have got hold of our clients password and are using our email server to send SPAM after successfully authenticating.
Please tell how to control this situation. I was thinking in lines of enforcing policies on even authenticated smtp clients that are pumping SPAM . Eg restrict clients not to send more than 10 emails per minute , etc. Any help would be greatly appreciated. Regds Mallah.
