input validation in cubusmail

[Hersh]

Hi,

My name is Hersh and I am a graduate student in Computer science at
Georgia Institute of Technology. For one of my projects, I need
subject applications which have input validation and are built using
GWT. I found that your application might be a potential candidate but
on going through the source code, I could not find much input
validation happening on the form fields. Am I missing something? If
you know of a particular function where input validation has been
specified, please let me know. I would appreciate your help.

Thanks,
Hersh