Return truemail

This reverts commit 862f5639ebbe4d3e6abd5d5be7fb7840e7b83bdf.

db/data/20200608084321_fill_email_verifications.rb

@@ -0,0 +1,21 @@
+class FillEmailVerifications < ActiveRecord::Migration[6.0]
+  include Concerns::EmailVerifable
+
+  def up
+    registrar_billing_emails = Registrar.pluck(:billing_email).uniq.reject(&:blank?)
+    registrar_emails = Registrar.pluck(:email).uniq.reject(&:blank?)
+    contact_emails = Contact.pluck(:email).uniq.reject(&:blank?)
+
+    emails = (contact_emails + registrar_emails + registrar_billing_emails)
+    emails = emails.map{ |email| punycode_to_unicode(email) }.uniq
+
+    result = emails.map do |email|
+      { email: email, domain: domain(email) }
+    end
+    EmailAddressVerification.import result, batch_size: 500
+  end
+
+  def down
+    EmailAddressVerification.delete_all
+  end
+end