Email the e-learning system is often used as a validation account when students perform tasks login or send email to the teacher or a central database elearning system itself. Lately, camouflage techniques to exploit vulnerabilities email mail server system often used by vocational students majoring in Computer Network particularly with the purpose of manipulating the data log, email disguised task to hack email accounts. Mail server built with andinovianto.id domain as the parent database mail a Vocational High School in Surakarta, within the period August 2 until 15 September 2016 to 96 students of class XII TKJ. With the passage of anonymous mail detection system, is able to record the activity of 96 mail user who has been registered with a total transaction mail delivery as much as 2,134 times, showing that 34.91% of them were anonymous mail with the purpose of disguising the email in shipping duty and theft of other student accounts. So with validating the results of the detection of anonymous mail with tasks that sent students to the e-learning system can obtain information about the sender and the email orginalitas duties.