Abstract:
Email is undoubtedly the primary means of communication in the present time
due to its low cost of operation and non-confrontational nature for receiving information.
However, email spoofing, a type of attack on users that makes them believe an email is
sent from a trustworthy sender, is growing exponentially.
In this study, a method was proposed to detect such spoof emails. A computer
programming script had been developed to verify whether incoming emails were sent
by trustworthy senders. This monitoring method was installed on the email security
gateway, and it had been implemented for a period of six months.
The method intercepted 30,633,332 unsafe emails out of a total of 33,106,281
emails, which was 92.53 percent. Moreover, this method was capable of quarantining
28,612 spoofed emails out of 2,472,949 safe emails, which was 1.16 percent. Lastly, the
method boasts a 100% email spoofing detection rate, and all spoofed emails destined
for the organization were diverted to quarantine center. This could reduce the chance
of receiving risky emails and preventing users from being victims to spammers.