Detecting Spammers

Spam e-mails dedicated the large amount of bandwidth to themselves. Besides wasting bandwidth, these Spam have led to security threats of computer systems in network. Because most of the senders - known as spammers - appertain to botnet infected networks; therefore, in this research some measures were considered to identify spammer in internal network both based on analysis of e-mail content and analysis of traffic characteristics of email packets. Thus, we can keep our network safe from the possible damages and also can have an efficient use of bandwidth of network. The result of assessment of this research indicates that our approach has higher accuracy and speed in detecting spammer than the previous systems.