DivaVocals:
Ummm you and I are speaking apples and oranges here.. I'm not speaking of email addresses being used on an email server to send email.. If that's what I meant then your response above would make sense..
In a software system, USER NAMES/LOGINS can indeed be case sensitive if the system is programmed as such.. So if you use an e-mail address as a USER NAME/LOGIN in a system where the user name/login IS case sensitive.. then YES [email protected] is not going to be the same as [email protected]..
And I have worked in SEVERAL organizations where logins for systems ARE indeed case sensitive (including corporate systems which use an e-mail address as the user login).
Now you may think this is silly, doesn't make sense, or whatever.. This doesn't make what am saying any less true.. Logins for systems CAN can be case sensitive (yes EVEN IF the login/user name is an e-mail address).. However, going back and forth on this point is moot since this is NOT how Zen Cart's customer login's work..
The doctor has spoken..
Not to continue this, but what you refer to as an 'email address login' is really a UPN, whether that is really the 'email address' of the user, is irregardless. And 'checking' case sensitivity and HAVING 5 users with [email protected], [email protected], [email protected] and [email protected] is ridiculous and those are NOT email addresses as they would all have mail delivered to the same place. Your security by obscurity just fell apart.
Within applications on a corporate network, sure, programmers can require case sensitivity on user names, but if you display that logins MUST BE IN CAPS on the login page, that sort of defeats the argument.
And this IS the place to talk about this, while ZenCart does not use email addresses for logins, my inquiry was related to order status checking with COWOA accounts and that does require using an email address along with order number to verify identity.
*nix systems and their derivatives have case sensitive user names. Windows, Netware and other LDAP based systems do not.