A simple Ruby EmailAddress class

I wrote this short, plain Ruby lib to handle email address validation inside and outside of Rails applications, and I would like to know what you think.

require "i18n"

class EmailAddress
  VALID_EMAIL_ADDRESS_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

  def self.malformed?(email)
    email !~ VALID_EMAIL_ADDRESS_REGEX
  end

  def self.valid?(email)
    !malformed?(email)
  end

  attr_reader :email, :i18n_scope, :errors

  def initialize(email, i18n_scope: [:models, :email_address])
    @email = email
    @i18n_scope = i18n_scope
    @errors = []
  end

  def valid?
    validate
    errors.empty?
  end

  def validate
    message = I18n.t(:invalid, scope: i18n_scope)
    errors.push(message) if EmailAddress.malformed?(email)
  end
end

Usage can be as simple as:

if EmailAddress.valid?(params[:email))
  # do something
end

Or for remote validations, for example:

def email
  email = EmailAddress.new(params[:email])
  if email.valid?
    render nothing: true, status: 200
  else
    render json: { errors: email.errors }, status: 422
  end
end