I'm developing a chat application. Users will be required to sign up using a university email address. 

My app will heavily rely on compartmentalizing users using a `UnivID` (University ID) which will be the `'@'` symbol along with the email domain. For example, if a user signs up using any of the following email addresses : `jsmith@mail.havard.edu, jsmith@havard.edu, or jsmith@student.havard.edu. The UnivID = '@havard.edu'`

I'm new to coding so I hope not to insult your intelligence if this is easy to implement.

Cheers