Felbook.Models.UserService.IsEmailUnique C# (CSharp) Method

        public bool IsEmailUnique(string email, User usr)
        {
            var result = db.UserSet.Single(u => u.Mail == email);
            if (result != null)
            {
                if (result.Username.Equals(usr.Username)) {
                    return true;
                }
                return false;
            }
            else
            {
                return true;
            }
        }