The spam mails have become an increasing problem for individuals
and for corporates, and lots of time and resources have been wasted
to combat the problem. Spam mails with forged identity have been
reported in forgery, fraud, and even more serious crimes.

This seminar will first investigate email security threats, and
then I will present several /network based email security
techniques/ for anti-spam and anti-phishing. Our approach applies 
email delivery network analysis and network tests to detect and
prevent spam and phishing emails. Our techniques do not require
scanning of the content of incoming emails and will make it harder
for spammer to forge email headers. I will also describe some
mechanisms for secure inbound and outbound email security controls 
in our secure email gateway implementation.

This talk is based on joint work with Dr. Der-Tsai Lee, Dr. Laurent
Lin and Dr. Kai-Hsiang Yang at IIS Sinica Academia, Taiwan.


Bio:  Dr. Dennis S. Sheu is a software veteran in Silicon 
Valley.  He has developed software products used by many Global 
2000 companies worldwide.  Dennis has held previous engineering
manager and project lead roles at several Silicon Valley startups 
and public companies.  He obtained his PhD degree on computer
science from Northwestern University at Evanston, IL USA.