email as username, case-sensitive email address

Question

I use email address as a username in my Django application

USERNAME_FIELD = 'email' but email field is case-sensitive so:

[email protected] and [email protected] are saved as two different users. It's normal or should I validate this somehow?

Answer 1

Lowercase the email before using it for operations like saving, comparing etc.

def save(self, *args, **kwargs):
    self.email = self.email.lower()
    return super(User, self).save(*args, **kwargs)