Error : Ensure this value has at most 30 characters (it has 31) django

[VENKTESH GUTTEDAR <venkteshguttedar@xxxxxxxxx>]

Hello,

    I am using DJango 1.7 and Postgresql 9.3.5.

    I am trying to store email in the username field of django.contrib.auth.models.User.

    but when i try to store more than 30 characters i am getting this error : Ensure this value has at most 30 characters (it has 31) django

    i tried changing the max length to 75 of username field of auth_user. but still i am getting the same error.

    Please help me to solve this

--

Regards :

Venktesh Guttedar.