Registering Users without mail

Hi everyone
Firstly, sorry about my english i'll try to do my best...
I want to register some users to make a test, and i would like to do without mail field (All of them are not real, only a practice or test).
Is it possible? At the "Field Manager" tab, i just put as not required, not registration, not profile and not searchable, but it seems as doesn't work
Any idea?? thanks to everybody and sorry again.

desenvolupament wrote: Hi everyone
Firstly, sorry about my english i'll try to do my best...
I want to register some users to make a test, and i would like to do without mail field (All of them are not real, only a practice or test).
Is it possible? At the "Field Manager" tab, i just put as not required, not registration, not profile and not searchable, but it seems as doesn't work
Any idea?? thanks to everybody and sorry again.

Joomla requires 4 items to create a user:

username (unique)
email address (unique)
name
password